Com 226 comp trouble shooting II theory book
Troubleshooting A Pointing Device 845
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| Troubleshooting A Pointing Device 845 Mouse port. If the device is missing or incorrectly inserted, install or re-secure the pointing device and allow the system to reinitialize. If you see a File not found error message displayed at the point your device driver was supposed to load, the driver might have been accidentally erased, might be corrupted, or might be located in a sub-directory where the CONFIG.SYS or AUTOEXEC.BAT files are not looking. Try reinstalling a valid copy of your mouse device driver and ensure that the driver is located where your calling batch file can access it. Reboot your system. Most well-designed application programs check for the presence of a pointing device through the device driver during initial program execution. If the application program aborts or fails to execute because of a No mouse found or No mouse driver error, return to the preceding paragraphs and recheck the device and driver installation. Symptom 25-5. You see a General protection fault after installing anew mouse and driver under Windows First, this is probably not a hardware fault (although it would be helpful to check any mouse driver command line switches in CONFIG.SYS or AUTOEXEC.BAT). It is more likely that the new mouse driver is conflicting with one or more applications. Try several different applications—most will probably work just fine. Check with the mouse manufacturer to see if there are any other reported problems, and find if any patches are planned. If you have an older version of the mouse driver available, try replacing that one. An older driver might notwork as well as a newer one, but it might not suffer from this kind of compatibility problem. If no patches or older drivers are available, you might be forced to change the mouse and mouse driver to something completely different to eliminate the problem. Symptom 25-6. You see an error This pointer device requires a newer version In virtually all cases, you have the wrong driver installed on the system for your driver. Check the driver and be sure that the driver you are using is appropriate for the particular mouse. For example, a Logitech or Genius mouse selected in Windows setup can cause this kind of problem if you have a Microsoft mouse on the system. Change the mouse type under Windows. Under Windows 95, you’ll need to remove the old mouse reference from the Device manager, then use the Add new hardware wizard to install the new mouse manually. Symptom 25-7. You see an error Mouse port disabled or mouse not present This is almost always a connection or setup problem. Check the signal connector first. Be sure the mouse cable is not cut or damaged anywhere, and see that it is attached securely to the serial or PS port. Many newer system BIOS versions now provide an option in the CMOS setup fora mouse port. Check the CMOS setup and see that any entries for your mouse are enabled properly. Symptom 25-8. The mouse works fora few minutes, then stops When the computer is rebooted, the mouse starts working again. This problem often plagues cutprice mice, and is almost always caused by buildups of static in the mouse. The static charges are interfering with the mouse circuitry, causing the mouse to stop responding (though charges are not enough to actually damage the mouse. There are generally three ways to resolve the problem (1) spray the surrounding carpet and upholstery with a very dilute fabric softener to dissipate static buildup, (2) hire an electrician to ensure that the 846 Mice And Trackballs Computer and house wiring are grounded properly, or (3) replace the mouse with a more static-resistant model. Symptom 25-9. You attempt a doubleclick but get quadrupleclick, or you attempt a singleclick and get a doubleclick This is a phenomenon called button bounce and is the result of a hardware defect (broken or poorly buffered mouse buttons. You might be able to clean the mouse buttons by spraying in some good-quality electronic- grade contact cleaner. Otherwise, you’ll need to replace the mouse outright. Symptom 25-10. A single mouse click works, but doubleclick doesn’tWhen this problem occurs, it is almost always because the “doubleclick speed is set too high in the Windows 95 mouse control panel. Try setting it lower. Click Start, select Settings, then open the Control panel. Doubleclick the Mouse icon and adjust the Doubleclick speed slider under the Buttons tab. Symptom 25-11. A PS mouse is not detected by a notebook PC under Windows 95 There is a known problem with PS mouse detection on a Toshiba portable computer under Windows 95. You can usually correct the problem by taking the following steps 1. Shutdown the computer entirely and physically disconnect the PS mouse from the PS port. 2. Restart the PC to the DOS mode and create backup copies of your CONFIG.SYS and AUTOEXEC.BAT files. 3. Restart Windows 95 (reboot the PC, if necessary. 4. Click Start, select Settings, open the Control panel, and doubleclick on the System icon. 5. Select the Device manager tab and doubleclick the Mouse entry. 6. Select the mouse entry that is not being detected (i.e., Toshiba AccuPoint”), and click Remove. 7. Select and remove any other mouse entries. 8. Shutdown the computer and reconnect the mouse, then turn the PC back on. 9. When the system reboots, it should detect the mouse and attempt to reinstall the appropriate drivers. If this doesn’t fix the problem, a hardware issue could exist. Try a different PS mouse (preferably from a manufacturer different than the current one. If a different make and model PS mouse does notwork, the PS port might require service. Symptom 25-12. Mouse pointer options are not saved This is a known problem when you use the extra points features in the Mouse Manager program included with the Microsoft Mouse driver. The pointer options are not saved or written to the MOUSE.INI file when you are running a virus-protection program, such as Microsoft Anti-Virus (MSAV) or Norton Anti-Virus (NAV). To correct this problem, remove the CHKLIST.MS or CHKLIST.CPS file in the directory, which contains the mouse files. To determine the location of that directory, typeset at the MS-DOS command prompt—it will return a list of locations of various files and memory strings. Look for the MOUSE Download 1.89 Mb. Share with your friends:
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