This is unbelieveable. Absolutely NOTHING will allow my computer to boot again right now.

Clearing CMOS = nope.

Unplugging everything including the CMOS battery = nope.

Flashing to previously working BIOS'es = nope.

Loading optimized defaults = nope.

Loading fail safe settings = nope.

Repairing Windows via the Vista installation DVD = nope.

So I'm having to reformat my RAID O OS partition and do a fresh OS install!!! This is the FOURTH time I've had to do so since I bought this board about a month ago. I've been having so many problems with this board since I upgraded from my Q6600 system that I held off on validating the Vista install until things were stable. Just YESTERDAY I went through the whole call Microsoft and jump through their hoops routine to activate my Vista install. Finished installing ALL of my apps just this afternoon. And now, it's ALL gone and I get to do it all over again.

This is the most problematic (yet most expensive) motherboard I've ever had!