I tried doing a repair of Windows XP as you suggested. I get as far as the Windows XP Professional Setup screen (where it asks for the CD labeled:Windows XP Professional CD-Rom) and nothing happens when I insert the CD and hit the ENTER button. All I see happening is that the CD-Rom drive reads the CD for 5 seconds and then the instructions (that were asked for before) appear again. I've used Maxell's CDX-1 Scratch Remover and CDX-2 Cleaner, Polish & Sealer on the CD and it still doesn't make a difference. What step(s) am I missing?