(System Restore didn't exist until Win ME came out <g>)
If I remember right, that error message means that the file has been corrupted - possibly it was a malware file that your AV decided was dangerous.
There;s a good chance in that case that a roll-back won't work either - it uses the VSS store as well. Try it anyway -
Open Device Manager, and find the entry for your mouse
right-click on it and select Properties.
Click on the Driver
tab, and then the Roll Back Driver button.
See if it can help.