Ok, so I tried Brian Hoffman's suggestion, and I also tried Chriss' suggestion to run chkdks, neither of those helped. Next on my plate is I am going to try Chriss' idea of making the Maxtor a master as well, and if that doesn't work I am going to try and find updated chipset drivers. By 'Secondary Master' did you mean make both drives 'Master'? I should mention I suppose that both drives are on the same ribbon cable, with the master plugged in on the end of the cable, and the slave plugged in to the plug halfway down the length of the same ribbon. That is the correct way to do it, right? Both drives are IDE, i'm running XP SP2. More ideas? I'd rather not wipe windows, there must be an easy fix for this considiering the drive pops up and works perfectly the moment I pick it in the 'Add New Hardware' dialog. EDIT: So a few more things to add to the symptom list. - Scanning for drives with Maxtor's Seatools also gets the drive to popup in My Computer. - If I get the drive to show up with Add New Hardware or Seatools, then restart, the drive STAYS. - If I Turn Off, the drive goes away.