"It goes in windows"? What does that mean? If it loads windows and you get a basic display, you should be able to load the nvdia tnt drivers from their website and it should be good to go. Your mobo won't recognize the card until the drivers are properly installed. So..please help me understand: you have basic video in windows, right?
Noli Nothis Permittere Te Terere!!
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.