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A Strange Mouse Problem

Posted on 2003-03-03
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Last Modified: 2013-12-16
I have a strange problem with an old Compaq Pentium 100mhz

I installed a network card into this computer and after turning the computer on again I found that the PS2 mouse was not working anymore.

I have tried everything to get the mouse working again such as:
* Removing the Network Card
* Trying a different mouse
* Different Drivers
* Also Windows doesn't recognise a serial mouse as well! When I attached a serial mouse, the mouse started working for about 2 seconds then stopped again
* I have also tried a dos driver for both the Serial and PS2 mice but to no avail
* Also, windows will detect a PS2 mouse port but will not recognise a mouse in the port

The comp is using Windows 95.
I don't think it has a virus because the comp didn't have any access to other sources where it may have gotten a virus (such as the Internet), between the period of time where the mouse worked and did not

Any ideas anyone?
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Question by:PaMpO
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rid earned 150 total points
ID: 8056665
At first, this looks like an IRQ conflict, but that should have been resolve by removing the new hardware. You could take a look in BIOS setup and look for anything about reserving IRQ for legacy devices. IRQ12 is normally used for the PS/2 mouse, so this should be reserved. You could perhaps try to reset the CMOS (or going to BIOS defaults) and see what happens. Make a note of hard drive parameters first, if there is no autodetect in this BIOS.

Regards
/RID
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Author Comment

by:PaMpO
ID: 8062574
Thanks for responding, but I have already tried resetting the BIOS, and I couldn't find anything to do with reserving IRQs for legacy devices.

Any other ideas???
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Expert Comment

by:phalcon
ID: 8107316
try restoring the system reg. files. start,run, type restore. could have damaged setup files while installing card. also check control panel, mouse icon for proper selection.
           good luck,    phalcon
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