Vista is flat out refusing to boot without the install DVD in the drive. I get the usual no valid disk detected, etc, error. However, as long as I set to boot from the DVD, and then don't press a button to enter setup mode, the computer boots fine. I've tried quite a few things. Doing the startup repair on the DVD does nothing. Manually trying to fix it using bootrec.exe and bootsect.exe does nothing. EasyBCD and VistaBootPro both do not recognize a Vista install when I attempt to use them to fix the problem. I've tried quite a few things, from the braindead to to the esoteric, and nothing seems to fix it. Any ideas?