Windows XP forum: Random Windows XP Professional Crash

I am experiencing a random Windows XP Professional crash on my wife's computer. The specifications for the computer are as follows:

Asus P4T-CM motherboard
Intel Pentium 4 1.4 GHz (socket 423)
Nvidia GeForce 2 Ti 4200
512 MB RDRAM

Last Friday (4/16) I installed "Beta" drivers (Kensington MouseWorks 6.1) for the following Kensington PilotMouse Optical mouse:
http://www.kensington.com/html/4005.html

A day later, the computer started randomly rebooting. The system error log gives the following error message:

Event Type: Error
Event Source: System Error
Event Category: (102)
Event ID: 1003
Date: 4/21/2004
Time: 9:06:24 PM
User: N/A
Computer: BROOKE
Description:
Error code 0000000a, parameter1 0000001c, parameter2 00000002, parameter3 00000001, parameter4 80515092.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 53 79 73 74 65 6d 20 45 System E
0008: 72 72 6f 72 20 20 45 72 rror Er
0010: 72 6f 72 20 63 6f 64 65 ror code
0018: 20 30 30 30 30 30 30 30 0000000
0020: 61 20 20 50 61 72 61 6d a Param
0028: 65 74 65 72 73 20 30 30 eters 00
0030: 30 30 30 30 31 63 2c 20 00001c,
0038: 30 30 30 30 30 30 30 32 00000002
0040: 2c 20 30 30 30 30 30 30 , 000000
0048: 30 31 2c 20 38 30 35 31 01, 8051
0050: 35 30 39 32 5092

When the computer randomly reboots, it hangs during the boot process on the "BIOS" screen. I then have to push the power button on and off for it to successfully boot. Even then, sometimes after I log into Windows, it reboots again. Other times, the computer can be used for a while.

I managed to boot successfully and I uninstalled the mouse drivers and returned the POS mouse. The problem didn't occur for few days so I thought it was fixed. However, it happened again today (4/21). Does anyone have any ideas? I defragged the hard drive as well as ran scan disk. There are also no viruses and I have all the latest Windows updates.

Thanks in advance,
Jason