I finally "bit the bullet" and updated to winXP sp2 I have been reading quite a bit on this forum about installing a new "main" drive and have never seen this problem come up. Using win98se I would simply switch drives after setting to "master" , swapping the cables and the drive would be seen. Not so with winXP. I switched drives and was going to do a "recover" using the rescue disk. The rescue disk never showed my new drive. I decided to put the old drive back and install the new drive as a "backup". I already had a backup drive and so it was a matter of changing to "slave' and switching cables. The rescue disk still couldn't see the drive, so I booted to windows and "Explorer" could not see the drive either. I looked in "Device Manager" and the drive was shown as " this device is working properly". I went into disk management and intialized the disk and I could now see it in explorer. and with the rescue disk. My question is..... if my "main" drive goes dead how can I install (intialize) a new drive without winXP running? I am using TI 9 build 3,677 I hope somebody can help me.