My son filled up his 3OGB HDD on his Dell Dimension 4550, so he bought a 200GB and used ATI 9.0.3633 to clone the smaller drive to the larger (using the Automatic option). Before cloning, I told my son to disable GoBack (which he uses) to make sure that it wouldn't affect the process. The cloning completed successfully. He then removed the 30GB and set the jumper to make the 200GB his Master drive. Upon booting, it gets as far as the WinXP splash screen and freezes. I checked his cable connection and jumper and they are correct. Figuring that something went wrong during his cloning operation I tried to clone his 30GB drive to the 200GB and just as before, it failed to bootup. Re-connecting his 30GB drive, the system boots completely. Any ideas as to why the cloned drive won't boot?