This is a fresh install? Sounds to me like you need to reinstall your video card drivers. Did you install all the appropriate mobo drivers from the mobo cd? Check out your video settings in the bios by booting into the cmos. ????????
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EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.