OK, I'm new on here, and would appreciate the help. I Have a brand new computer. Asus M4N68T-M V2 Motherboard AMD Phenom II X4 955 processor 4 Gig RAM Clean 500 gig SATA HDD nVidia GTS 450 So now i'm trying to install Windows 7, and I now get through the first step and i get stuck on a...