Hi, just passing through and was reading...
I had a similar problem with gaming being unstable with my new GTX580 SLI, BSOD !! I tried everything...
It turned out after about 30 hours of troubleshooting, the culprit was my SSD drive
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, weird as that should have nothing to do with gaming other then loading.. I flashed my SSD to latest firmware and my BSOD went away, ran Crysis2 benmark for 12 hours non-stop.. kicka$$...
Just a wildshot, give it a try & update (if you are using SSD) to latest firmware.. Pls do backup your data first before flashing