I have a Logitech Optical Wheel Mouse and every once in awhile Win 2k will fail to detect it. By this I mean that the LED will not come on. Also when I print sometimes the mouse will just die, weird. The mouse is connected to the USB port because when I use the PS/2 adapter and shut down my computer the LED stays on constantly. I think that it might be something in the mouse but I am not sure. I tried Logitech by the response I received was absolutely no help at all. Any input would be greatly appreciated.