My 8800 gt GPU died on me..so I ordered a 460 SC from EVGA. I install it, and first boot tells me "NTLDR is missing". Never has done this until I installed the new GPU. So on the laptop I research this and try all the fixes suggested including bootrec.exe /fixmbr...no good. /fixboot...no good. Used the Repair startup from the vista cd and says no errors. So I found the guide at THIS link that tells me how to rebuild the boot.ini from scratch. Can't get that part to work because command prompt cant find the /boot folder it references to. (Step 3 and 4) One more note...Vista loads fine now only with the Vista DVD in the drive. Any ideas anyone?