frapae

hi i have alienware m17x r3 windows 7 64 bit sp1 bios flash A12 sorry for jumping in on the post but i really need help ive followed the instructions step by step got past the white screen got enabled the sound in the bios, windows boots up and starts my sound is working BUT now the nvidia installer is not detecting the hardware gtx 780m. i have a alienware m17x r3 the bios shows the gtx nvidia ive updated IDT drivers sound working updated the PCI drivers can someone show me the correct links or instruction on how to the nvidia driver installer locates the hardware reagrds