I've had problems with logitec mice, and I don't know why. I have one on my Mandrake machine and it seems to be OK. But under Windows XP and 2000, when it was plugged into the USB port, at boot it wouldn't see the mouse. I had to unplug it and plug it back in. I tried using a PS2 adapter but that didn't work. I can use the PS2 adapter with the Microsoft mice and use regular USB without a problem.