I asked a question about mouse problems awhil back with no positive results. But you all DID try! Now I've got another one...The mouse in question is the PS/2 model. I got a USB to PS/2 adapter & tried that with no sucess. It would reconize that new hardware was detected, but would list it as an unknown device, with notheng listed in the Device Mngr, nor the mouse section in the control panel. I tried the new hardware wizard with no sucess. No way to load any drivers for it. Actually I read on a web site, Computer Hope I believe, that most times a mouse doesn't require a driver. For a reminder my system is 2000 Pro. amd 300 processor, 160 ram. I'm still currently using the serial mouse but the buttons are about to fall off..no joke!! Thanks weather ya can help or not!!! If I can't solve this I may just take both of'em over to the Pit Stop & let them guys use them for cat bait!!