I've just recently upgraded to windows 2000 professional (from win98), and I have had a problem with my mouse (first, I had a M$ branded mouse, then I changed to the M$ intellimouse explorer); with both devices, I have had the same problem:
After a while, my mouse ceases to function in windows 2000 (I had no problem at all in windows 98). I can switch on MouseKeys, but after a while it fails also. I can see no log of the mouse failing, and windows says the device is functioning properly. Both devices have been plugged into the mouse PS/2 port (I'm using the microsoft USB-->PS2 plugin for the intellimouse). I thought that when I had changed to the intellimouse the problem would go away, but it hasn't.
I've done a full virus scan, but I can find no virus that may be causing the problem.
Does anybody have any ideas?