Why are you running windows from the 80G secondary disc. The best thing to do is set up the primary disc (C) 80Gb as master, and the 200G as slave using the jumper settings near the IDE pins at the back of the drive. Reinstall Windows XP, your drivers, and XP SP/2. Create a partition using ghost or ghost an image to a DVD and you can restore your drive from that. Use the 200G as storage. Try that and see how you get on. Might not be abe to reply, but best of luck.