"Disk Boot Failure" Error

I recently installed Windows 7 on my Gaming desktop and it was running smoothly until this morning. I went to turn it on and it gave me a "disk boot failure insert system disk and press enter" which I immdeiatly thought was related to my Raid 0. Fearing the worst, that one of my drives died, I put in the Windows 7 disk and went into repair mode. Much to me releif I am able to see and access the boot drive, in this case D, and look at the files and such in the drive.

I then proced to go through the windows repair, which finds nothing. I then thought it may have been the MBR since for some reason it hangs onto my old OS installs. I did a "bootsect /nt60 D:" which completes successfully, however doesn't fix the issue.

Any ideas guys?

Motherboard is an ASUS P5N32-E SLI
Memory is CORSAIR XMS2, 4 Gigs
EVGA 8800 GTX Vid card
Intel Core 2 Quad Q6600

The MB is using the most recent drivers from Nvidia, unless windows "updated" them.