charliex, you are correct. I dont know what I was thinking. Actually I do....I had my comp with the setup i suggested a while back and didnt have any problems except when i was using the DVD drive and trying to access my primary HD. I'm currently running all 4 drives on different channels with the on board promise controller for my HD's. Sorry for the bad info on the drive set up....but Id still not worry overly much about which HD were if I already had them in my machine and would just change drive letters in XP