After a failed OC, i reset the CMOS and updated the BIOS and updated the time in the BIOS. When I tried to boot though, windows would be stable for 15 seconds then it would become highly unstable and refuse to run any programs. I managed to really qucikly have it start running super pi 32 million which passed with a normal score. Mem test returned no errors. So i tried chkdsk off the xp boot cd, it returned one error which was fixed, then none. The problem was still there, so i booted off the CD and reinstalled windows. Now it gets hung up on the welcome screen. Any ideas? This is happening on a 74 gig Raptor.