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Subject: PSION Series 3/3a palmtop FAQ part 2/6

This article was archived around: 21 May 2006 04:22:54 GMT

All FAQs in Directory: psion-faq
All FAQs posted in: comp.sys.psion.announce, comp.sys.palmtops
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Archive-name: psion-faq/part2 Version: $VER: Psion FAQ v2.6 Posting-Frequency: monthly URL: http://www.geocities.com/SiliconValley/8130/faq.htm
part 2 See part 1 for complete table of contents of this FAQ (including this part's). 1.6 Where can I purchase a Psion? Prices for 2Mb Psion are quoted for each when known, but you should contact vendors for latest prices, as they change quite a bit, and I don't track those changes here very often. Numbers marked "[US/CA only]" means that the number can only be called from the USA or Canada (sometimes both, sometimes only one). If no other number is specified, the person or company presumably does not want to deal with customers from elsewhere. Usually, you will get the best deal from a UK vendor (but keep in mind that you will also get a UK version!) If you travel to London, you can get a good deal at the "Duty Free" shops in the airports or by haggling in the Tottenham Court Road shops. Important note: these addresses have NOT been verified, so check before you intend to buy from one of them! Also, I am NOT listing any more vendors without web sites. For a (maybe) more up to date listing, you may want to check out the PDA Page homepage at: http://www.pdapage.com which lists the best sites which sell PDAs. Byson Computers [UK] Fax: +44 1635 874 022 Email: ian@byson.demon.co.uk http://www.hiway.co.uk/~byson/ Clove Technology [UK] +44 1202 302 796 Email: 100255.3642@compuserve.com http://intertrader.com/computers/clove/ Internet Shopping Network (usually have very cheap prices but actually restricted to the USA) http://www.internet.net New World Technologies 110 Greene St, Suite 1100 New York, NY 10012 USA Phone: 1 800 886 4967 [US/CA only] Will price match Phone: +1 212 941 4633 Fax: +1 212 274 8527 Email: ajai@nwt.com, (GidNEW on AOL) http://www.nwt.com NDS Distributing 11875 Dublin Boulevard, Suite D-270 Dublin, CA 94568 USA Phone: 1 800 425 7725 [US/CA only] Phone: +1 510 803 8790 Fax: +1 510 803 8792 http://www.ndsdistributing.com Planet Pfund Daniel Pfund 19, ch. Tirelonge CH-1213 Onex Phone / Fax: +41 (0)22 792 10 82 Mobile: +41 079 350 60 64 Email: info@planet-pfund.com http://www.planet-pfund.com PSIOlogic GbR Matthias & Michael Baas Taunusstrasse 4 D 63589 Linsengericht Phone: +49 (0)6051 470065 Fax: +49 (0)6051 470066 Email: 106044.2274@compuserve.com http://www.psiologic.com Official Psion distributors/importers: For an upto date list, you may like to take a look at Psion's web site. Argentina PSIAR Avendia de Mayo 963, 3rd Floor Buenos Aires Phone: +54 1345 4052 Fax: +54 1345 3705 Australia Psitech Ltd Kangy Angy Phone: +61 4362 2014 Email: psitech@cix.compulink.co.uk or psitech@ozemail.com.au Belgium and Luxembourg Micro-Connection Korte Winkelstraat 15, 2000 Antwerpen Phone: +32 3 232 34 68 Fax: +32 3 226 17 49 BBS: +32 3 226 20 79 Email: ferre@cix.compulink.co.uk Canada Compulys Data Inc. Place Montreal Trust 1800, Avenue McGill College, Bureau 2102 Montreal (Quebec) H3A 3J6 Phone: 1 800 361 0609 [US/CA only] Phone: +1 514 98 PSION [International] Fax: +1 514 987 9611 Denmark Mobi Data Ltd Phone: +45 38 33 55 01 Finland Hand Held Systems Torikatu 6-A, 451000 Kouvola Phone: +35 8513 710 017 Email: Pekka Aikas - Paikas@cix.compulink.co.uk Italy Videocomputer Spa Via Antonelli 36 Collegno (TO) 10093 http://www.videocomputer.it Kuwait Nascorp Kuwait c/o Anwar Essa Al-Saleh Est. P.O. Box 4704 Safat, Kuwait 13048 Phone: +965 573 7684/5 Fax: +965 571 6674 Email: Essa Al-Saleh - esaleh@kuwait.net Netherlands Psion Nederland B.V. Avio Trade Park Zandsteen 52 2132 MR Hoofddorp Phone: +31 20 446 9444 Fax: +31 20 653 3427 BBS: +31 20 653 1075 Email: psionnl-support@psion.com New Zealand Pocket Solutions Ltd PO Box 44 070 Lower Hutt Phone: +64 4 566 7808 Fax: +64 4 569 6452 Email: psol002@ibm.net Poland Centum Informatyki Energetyki Phone: +48 22 625 22 83 Fax: +48 22 693 32 6 Portugal Comp 3 Lda Rua Augusto Gil 30 A/B 1100 Lisbon Phone: +35 11 7972 259 Fax: +35 11 7951 928 Saudia Arabia Nascorp P.O. Box 2951 Jeddah 21461 Phone: +966 2 667 6204 (Jeddah) Phone: +966 1 231 1785 (Riyadh) Email: Essa Al-Saleh - esaleh@kuwait.net South Africa Psionet Distributor CC Phone: +27 21 683 1192 Spain Paresa SA c/ Balmes 113, ppal 1a 08008 Barcelona Phone: +34 3451 6505 Fax: +34 3451 6231 Switzerland Excom AG (Psion importer) Moosacherstrasse 6, Au 8820 Wadenswil Phone: +41 1 782 21 11 Fax: +41 1 781 13 61 http://www.excom.ch 1.7 How can I contact Psion? 1.7.1 World Headquarters UK Offices: 1 Red Place London W1Y 3RE Phone: +44 990 134 224 Main desk +44 990 143 050 Sales & customer services Fax: +44 990 561 046 Email: Psion_corp@cix.compulink.co.uk http://www.psion.com UK Service centre: 17-19 Bristol Road Greenford Middlesex UB6 8UP +44 181 575 9919 1.7.2 USA (Psion Incorporated) Corporate Headquarters 150 Baker Avenue Concord, MA 01742 USA Phone: +1 800 54 PSION Phone: +1 508 371 0310 Fax: +1 508 371 9611 Email: usa-support@psion.com http://www.psioninc.com Midwest Office 225 West Washington St., Suite 2242 Chicago, IL 60606 Phone: 1 312 419 5300 Fax: 1 312 419 7142 West Coast Office 800 Airport Blvd. #417 Burlingame, CA 94010 Phone: 1 415 373 1234 1.7.3 Germany Psion GmbH Daimlerstr. 16 61352 Bad Homburg Germany Phone: +49 6172 6630 Fax: +49 6172 663100 Fax-on-Demand: +49 6172 663179 (FaxAbruf) Mailbox (BBS): +49 6172 663170 (Dacom GmbH is on +49 6172 9654-45, Hotline on -42) Email: gmbh-support@psion.com (technical support) Email: gmbh-vertrieb@psion.com (Sales) http://www.psion-gmbh.com 2. HARDWARE 2.1 Hardware specifications All Psion machines are based around the "SIBO architecture", which was developed to meet common goals which span the SIBO range, including Series 3. Of paramount importance is low power usage. To this end CMOS circuits are used, the CPUs are static - meaning their clocks can be slowed down or stopped and restarted without impairing function, and the specially designed ASIC chips implement sophisticated power management, which always ensures that only those parts of the machine which are needed, are powered up. Power is provided by 2 AA batteries during normal operation. A Lithium backup battery, a CR1620, is provided which maintains memory during battery changes. A mains adaptor inlet is provided. A system clock runs independently of the CPU even when the machine is "off". This allows it to keep time and to wake the machine up when (for example) alarms expire. A six-pin outlet is provided, through which serial and parallel ports may be connected. This outlet has exactly the same signals as the two expansion ports (SSDs). A sound system implements beeps on the Series 3 through a low power piezo-electric element at two volumes. On the 3a there is a more sophisticated system employing bi-directional digital-to-analogue conversion, a conventional speaker, and a microphone, which together support the recording and playback of digitally-recorded sound. Digital sound data is compressed and expanded between 8 and 13 bits by hardware in an ASIC using the Alaw algorithm during recording and playback respectively, at a sample rate of 8KHz. This performance conforms to the ISDN standard for digital phone systems. A Series 3 buzzer emulation is also available on the 3a. For both machines, there are two expansion ports, also called SSD drives, into which RAM or EPROM memory modules may be placed. The memory is split into two types: process and storage. Storage memory is only used for storing data. Process memory is the memory used by the processor. Programs run in this type of memory. Process memory is limited on all Psions to 512k maximum. There is no storage memory on Psions with 512k RAM or less. To be honest, this is a not a big problem, since the Psion implements a real good memory management and "windows" the memory needed for each application. In practice, this means that you can open several huge databases for example and only need 10k of memory for each one. In tabular form, the differences are summarised below: Item Series 3 Series 3a HARDWARE PROCESSOR name V30H (80C86 compatible) V30H(80C86 compatible) Bitwidth 16 16 Speed 3.84 MHz 7.68 MHz video mem access 8 bit - half speed 16 bit - full speed DISPLAY Type Monochrome LCD Monochrome LCD Physical size 97 x 39 mm approx 126 x 45 mm approx Display size 240x80 480x160 Display depth 2 - black/white 3 - black/grey/white MEMORY Internal 128 or 256Kbyte 256Kb,512Kb,1Mb,2Mb Expansion 2 slots = 16Meg max 2 slots = 16 Meg max DIMENSIONS Size 16.5 x 8.5 x 2.2 cm (6.5" x 3.3" x 0.9") Weight 275 grams including batteries SOUND Output device Piezo beeper Loudspeaker Capability variable pitched Beeps Any sound and DTMF [*] Digital system NONE DAC/ADC 8/13 bits Sound recording NONE 8K samples per second Telephone dialler DTMF capability DTMF capability *Further sounds can be generated if a custom device driver is written PARALLEL PORT Via optional link Via optional link SERIAL PORT Via optional link Via optional link Software Installed in link pod In Psion 3a ROM Max speed 9600 baud 19200 baud SOFTWARE SYSTEM SHELL Controls applications Upgraded on Series 3a DATA Database application Upgraded on Series 3a WORD Comprehensive document Upgraded on Series 3a processing system AGENDA Personal management Major upgrades on 3a application TIME Clock and alarms manager Upgraded on Series 3a WORLD World info database Cosmetic upgrade on 3a CALC Calculator Calculator Allowing OPL extension Cosmetic upgrade on 3a SHEET [*] Spreadsheet application Speadsheet application available as add-on [*] built-in *In the US, and latterly in the UK, the "Series 3s" includes the spreadsheet as standard (not for 128k models) SPELL CHECKER/THESAURUS add-on Only on 1/2Mb models * PATIENCE GAME add-on Only on 1/2Mb models * *Spell checker/thesaurus and patience game are apparently only available on UK/US country specific 1/2Mb models (ie: not available for french nor german models!) OPL Programming application Series 3 compatibility mode also available. 2.2 What batteries does the Psion use? Normal power is provided by two AA (also known as LR6) batteries. Standby power is provided by a small Lithium backup battery, a CR1620, which maintains system data during main battery changes or failure. 2.3 How long do the batteries last? It all actually depends on what type of batteries you use. Here are the advantages and disadvantages of the different battery types: * Alkalines. These are the "normal" batteries and work well. * Carbon/Zinc. These batteries are cheaper than alkalines but of course don't last as long. Might be interesting if you can get them really cheap and are ready to change batteries often. * NiCad rechargeables. These proivde less energy than conventional batteries (reports suggest maybe half) and they fade rapidly once their charge is nearly gone, but - they are rechargeable, and so offer a cost effective alternative. Note that NiCads are NOT recharging while the machine is powered by the adaptor. * Lithium AA batteries. They are 30% lighter than alkalines, and they last longer, but they are more expensive. Recommended if you really need long battery life and in extreme conditions. These batteries have a very long shelve life. The link causes high battery loadings, as does the sound system. Accessing the SSDs also increases power drain. Because of the static architecture, a busy CPU drains more power than a sleeping one, so compute-intensive tasks will burn power. For these reasons, it is difficult to quote battery performance exactly, but the table below summarises reports received on the net (for a 512k version). Alkaline NiCad Lithium Running time (Hrs) 40-80 20 65-100 Power delivered (mAh) 1500 800 1600-2700 Price each (UKP) 0.5 4.5 Comment 30% lighter 1/2Mb models use more battery power since they use memory bank switching which is processor intensive. The backup battery typically lasts 15 months. 2.4 How does the Psion measure the battery usage? (by Alan Roberts) Actually, the battery consumption is only estimated, there is no real voltage meter inside the Psion. The Psion knows the average battery consumption in each state (ie: xx mA when playing a WVE file; yy mA when writing on flash ... ) and keeps a record of the time spent in each state. When the voltage drops below a threshold, the "replace batteries" and "emptying batteries" display appear. 2.5 How can I make my batteries last longer? The most important thing is to always turn the serial link OFF when you don't use it. This is the number one power eater on your Psion. Here are some other more or less obvious tips: 1. Be sure to set the "auto power off" feature ON 2. Turn the auto update list to OFF, set it to use the System button 3. When you want tu update just one list, use delete and ESC. This is much quicker than pressing the System button (and should save battery power). 4. Avoid switching on with the System button, as this would update all the lists. 5. Let the applications open multiple files. Preferably set the preference to "Enter" instead of "Shift-Enter" as you often forget to press shift-enter. Saving and opening files uses more battery power than to leave the files open. 6. Avoid playing long or loud sounds 7. Set volume low 8. Avoid saving many files to Flash SSD 9. Avoid reformatting, particularly Flash SSD Thanks must go to Philippe Lebreton and Blake Nancarrow for these great tips. 2.6 Can I use an external power supply? Yes, the Psion comes with a standard power outlet so you can use either the official Psion power supply or a general-purpose mains adaptor (which is cheaper). Negative polarity should be selected - ie the tip should be negative. The power supply should be able to deliver 150mA at 9V. The Psion adaptor has an indentation around the outer conductor near the tip which facilitates snug fit for improved reliability. You can plug the external power supply in/out while the Psion is on. It will then immediately use the external power or batteries. The Psion also has an automatic turn off possibility. This is very useful if you often forget to turn it off! One of the choices for this auto turn off feature is "If no external power", so you can safely use it on external power and it will not turn itself off anymore until you unplug it again. 2.7 Can I upgrade my Solid State Disk (SSD)? Flash SSDs are cheaper than RAM SSDs because the filesystem doesn't actually allow you to recover deleted space on them. Even if they're cheap compared to real RAMs, they're still quite expensive because they're not manufactered on a big scale (they're Psion proprietary). This tempted several people to accomplish upgrades. It has been successfully done, but I decided not to describe it here for several reasons: 1. It wouldn't be fair to Psion PLC. Think about it: it would prive them of rightly owned money for their R&D and that wouldn't make us many friends, would it? 2. The chips you need aren't easy to find. 3. It is quite easy to do for a trained electronics technician, so that person wouldn't need any instructions anyway. If you don't have the expertise, don't even think about it! In the mean time, there has been a company that has specialised in making SSD upgrades: Exportech in London. You can contact them by email at: 100121.1165@compuserve.com 2.8 Can I upgrade my internal RAM? The big question when the 1/2Mb models came out: can I upgrade my 512k to a 2Mb model? Well, sorry, but the (short) answer is no. The new models use a new ROM to access the extra memory. Psion PLC does not offer upgrades for new models either. The best solution is to sell your old model and get a more recent one. In mid 1996, several companies have offered their services to upgrade 512k models to 2Mb models. They will change the motherboard completely, so I suppose you'll have an exact 2Mb version with spell checker/patience?... Try to contact the following company: * Broadway Management Services Ltd Room 1604, CLI Building 313 Hennessy Road Wanchai , Hong Kong Price: about 303 USD! If you own a 128/256k or 1Mb model, upgrading it is just a matter of adding more RAM to it. Psion PLC or other official repair centres can do this for you, contact them about it. For info, Pinnock Organisers will upgrade your 256k Psion to a 512k model for 65 UKP. For the help of us all, Fionn Behrens has made a nice web page with details on how to upgrade your internal RAM with pictures and step by step instructions. You can find his pages at: http://www.informatik.uni-siegen.de/~fionn/e/Psion/ For the time being, process memory is limited to 512k on every model and you cannot add more whatever you do. 2.9 Can I change the keyboard? A lot of people buy their Psions in the UK because of the huge price difference compared to their own country. This is not a problem in itself if you just remember that you will be getting the UK version, thus the UK keyboard, applications and manual. This also the reason why so many people would like to change the keys of their keyboards. For these people, there is no simple solution. The keyboard map is not just a file held in RAM, so basically, you're stuck with your keyboard, but there are workarounds to this: 1. In many applications, you can enter special characters (for example foreign characters not found on the keyboard) by holding down control, then typing the three digits of the ASCII code for the character (ASCII code table on page 246 of the User Guide). This works for all characters in the range 32 to 255. Some lower codes are used for control purposes. 2. There is also a quicker way to enter letters with accents, umlauts etc. CONTROL can be used with the number keys as a character modifier directive. For example, "2" is the "Add an Umlaut" command, so you can hold down CONTROL then press "2" and "o" to get a umlauted "o". Most numbers are chosen as convenient mnemonics: 2 has " above it - which looks like an Umlaut; 3 has \ which simulates a grave accent but 4 has ~, which produces (oddly!) and acute accent, whereas 5 which has a ' produces a tilde! See the Character set section of the user guide for details. 3. Use Tom Dolbilin's excellent Macro System package to assign a "macro" to a regular key, thus emulating another key. 4. Use Konstantin I. Saliy's keyboard map program to remap the keys in a very efficient manner which works with all programs and only uses 10k of memory! 2.10 Can I use a big (normal) keyboard? Yes, if you have Tom Dolbilin's Macro System installed, there is a macro called "BigKeys" which actually reads the serial port and sends the key to the HWIM application you're currently running. Unfortunately, it will not work with normal OPL applications. On the other hand, you will still need another computer to send the keys over the serial line, so it really isn't what people are looking for! Keith Baker krb@ecs.soton.ac.uk has made a little interface for just a normal keyboard (without the need for another computer) connected to the Psion using the 3-Link interface . Note that it will not work with OPL applications either. 2.11 How can I build a serial link? (by Konstantin I. Saliy) For the common mortal: you can't (we're talking about 3a 3-Links here). If you have the C/OPL SDK, there is a diagram of a TTL RS232 interface... BUT the diagram is based around a Psion custom chip called "ASIC5". This chip converts the SIBO serial channel into standard RS232 signals and back. According to the documentation this chip is available from Psion for custom expansion development. Documentation also provides information about modification of example device for CMOS levels. But this device is a serial link only, not a real 3-Link. The 3-Link contains a ROM "SSD" with software. You can use the serial link instead of 3Link but some applications (I'm not sure, it's only my opinion) can check if disk C is present or even for disk C's serial number. Of course if an application uses only device drivers interface (VT100 emulators) it will work anyway. The SIBO Serial Protocol is also described in the SDK. Refer to it if you want know more about Psion expansion port. For the 3c, this is entirely different! The 3c serial cable is just that: a simple cable. Justin Buckland has been kind enough to send me the pinouts for such a cable. He will also sell such cables himself; you may like to contact him by email at jrb25@cam.ac.uk or by telephone (+44 1223 570477) or simply check out his web site at: http://www-sp.phy.cam.ac.uk/~jrb25/psicable.html Justin found the parts from CPC (tel. +44 1772 654455). Connections for Psion 3c / Siena serial cable are: Psion: ___________ 1 /___________\ 15 9-pin D socket: --------------- \ 5 4 3 2 1 / \ 9 8 7 6 / --------- 9-pin: Psion: RS232: 1 nc DCD data carrier detect 2 12 RD received data 3 8 TD transmitted data 4 11 DTR data terminal ready 5 1 SG signal ground 6 13 DSR data set ready 7 9 RTS request to send (= DTE ready) 8 14 CTS clear to send (= DCE ready) 9 10 RI ring indicator 2.12 How can I build a parallel link? (by Konstantin I. Saliy) If you have read the previous section, you can realize that a one-way parallel link is much easier to make for people who are familiar with digital logic. Two way parallel link is possible also: typical parallel link baud rate is 40K bytes/sec, and SIBO interface allows you 1.5M bit/sec, but you'll need a hardware buffer and PDD/LDD pair to receive data. 2.13 What is this "soap on a rope" thing? The "soap on a rope" is simply another name for the 3-Link. It is named like that because of it's ressemblence with (guess what ;-) the well known soap on a rope. 2.14 How do I print with my Psion? There are a number of ways you can print from your Psion 1. Through the parallel link, connect your Psion directly to your printer but do not turn the link on in the system screen! 2. Through PsiWin. See your PsiWin manual for instructions. 3. Through the serial link - use the printer setup dialogues appropriately and do not turn the link on in the system screen! 4. Use PRINT SETUP to select printing to a file called REM::C:\LPT1 Run MCLINK on your PC, and activate the link from the Psion. Now all print requests will go through the link to the PC printer, and MCLINK is available for file transfers - better than MCPRINT. This solution also works with RCOM. On some PCs running Windows, it may be better to print to LPT1.PRN, which traverses through the DOS/Windows device drivers slightly differently. (by Daniel Senie) 5. Use RFM (see elsewhere in the FAQ) to make Psion drives visible, then use a conventional PC tool to print files from the Psion. 2.15 Can I take my Psion through an X-Ray machine? Yes you can without fear. Nowadays the airport's X-Ray machines are harmless to palmtop computers and diskettes (hopefully ;-). In any case, if you're really not assured, ask to pass it seperately. 2.16 Can my Psion wipe out magnetic data? Yes it can! Be careful with the underside of your Psion because it is actually the speaker which contains a magnet whom is responsible for such problems. Credit cards and other magnetic data seem to be the easiest "victims" of the magnet. Check out the first page of your User Guide for Psion's own warning about this. You can try the paperclip test which consists of taking a pile of paperclips and placing the Psion on top of it. Lifting the Psion will typically take 5 paperclips with it! 3. SOFTWARE 3.1 How do I reset my Psion? You should not normally need to reset your machine at all. See "What is killing a process?" to find out how to terminate misbehaving applications. Doing a RESET re-initializes the system's processes. It re-starts things as though it had just been powered up, and so will make many error conditions go away. Doing a reset will also remove any software patches you may have applied. These would need to be re-applied after each reset. A soft reset will also make you lose your user-defined groups and installed software icons (but the real software, ie: the program, should still be there). There are two kinds of resets: * A SOFT or WARM reset will restart processes and lose your time zone information, but leave the contents of the RAM disk, and environment variables intact. Do this by gently pushing something like a straightened paperclip into the small hole above the ESC/On key to do a "warm reset". * A HARD or COLD reset will completely re-initialize the whole machine, removing all memory contents. Complete instructions for performing this action are included in the "Troubleshooting" chapter of your "User Guide". 3.2 What is killing a process? Killing a process is like closing an application but without letting it know. This will result in loss of data if the application didn't save it before being killed, so be warned! Usually, you can exit an application (from within it) with Psion -x (for english Psions) or Psion-Esc. If the application doesn't respond to keypresses anymore and nothing else works, you will have to kill it. For this, you can go to the system screen and press Psion-shift-k (for english Psions). You can also use other specific programs which allow killing of any process (Spy is one of them). 3.3 How can I save what's on the screen? From any point, you can take a screen snapshot, by holding down shift, control, Psion, and S. The PIC file generated is placed in M:SCREEN.PIC. 3.4 What is the soak test? (by Jason Savage) WARNING: INITIATING THE SOAK TEST WILL CAUSE THE LOSS OF USER DEFINED GROUPS AND USER INSTALLED SOFTWARE!!! It has long been known in the computer and electronics industries that electrical components, for the most part, fail either shortly after they are first activated or after many years of service. Because of this fact the concept of the soak test or burn-in or life test was invented. Simply put, the machine (in this case a computer) is put through a repetitive testing loop for several hours (24 for the Psions to be more precise). This procedure would then filter out most of the bad batches and prevent them from reaching the hands of the general consumers. To activate the soak test on the Psion series 3, press (See warning at the beginning of this section) Control-Shift-Psion-K on the System screen. This procedure will cause a soft-reset of your Psion. 3.5 How can I find a text in my memos with Agenda? Actually, you can't! Psion hasn't implemented this feature yet. What you can do, is use another program called "MemoFind" which will do just that. It's a freeware program from Psion available at usual FTP sites. 3.6 How can I make the cursor bigger? It may get difficult trying to find the cursor in Word for example. Unfortunately, there is no way to make it bigger. Some suggested solutions are to press shift-right (to highlight a character) or home (to find the cursor on the far left). 3.7 How can I take out the "hum" when I record sounds? The hum (apparently a 60Hz sound) appears only when you record using battery power. It is probably due to the voltage converter inside your Psion (from 3V to higher). If you use the AC adapter, the hum disappears. 3.8 How safe is password protection? See also "Data security with link connected" in next section. The Word password protection is not really good. It is known that it's possible to "crack" the password (but not find it) and see the clear text in a very short time (reported by Clive D.W.Feather in Dec94 and now included in his Psionics files). Obviously, you do need some programming skills to do it, but all in all, it is feasible, so be warned! Also, never use a single letter password! This could be way too easily broken by brute force. It is recommended to have at least 6 characters and even better, a mix of letters and numbers. Another issue is power on password protection. Apparently, it is possible to bypass it somehow; no infos are given!. Just don't rely on it too much. Also, remember that if you keep some data on your SSD Disks, the potential thieve can still read those informations by simply transfering the disks into another Psion! The bottom line is that the password functions of the Psion are useful for keeping casual snoops from reading your data while you're off making a phone call, but if you're seriously worried about security then you shouldn't be keeping sensitive material on a handheld machine in the first place. 3.9 How can I change the icon of a program? (by Matthew Powell) 1. Install the application on the System screen in the usual way. 2. Use the "create new list" command (Psion-E). Enter the same working directory and file extension as for the original application. 3. The "create new list" dialog will allow you to specify a custom icon in exactly the same way as when creating a group. 4. Enter a name for the new list. Once you've done this the application should have two lists on the System screen. Remove the one with the original icon. If you create a new list for Word, read this: The Word application maintains a different template (which holds the styles and default preferences) for each list. To carry on with the same template as you had before, you will need to make a copy of the file Default.wrt in the \WDR directory. The copy should have the same name as your list, with a .wrt extension. For example, if your new list was called "Notes", copy \WDR\Default.wrt to \WDR\Notes.wrt. Alternatively, use a program called NEWICON2.OPA which does just that! End of part 2/6 _________________________________________________________________ [Go to previous part] [Go to the index] [Go to next part] _________________________________________________________________ All pages coming from http://www.geocities.com/SiliconValley/8130/ (and this is one of them!) are copyright 1996 Daniel Pfund. -- |\ |\ PSION specialists: http://www.planet-pfund.com | )|/ *--------------------------------------------* |/ | http://www.geocities.com/SiliconValley/8130/