i have two video cards istalled on my comp and now i can only find one. they are both nvidia, one is a 8600gt (the one i cannot find and isnt working) the other is a 6400(which i am using now).

my first thought was to reistall the driver, but my computer isnt recognizing the hardware. I have used a few different methods to try and find the hardware.

Do i need suck it up and just go buy a new one, or do i have some other optioins. I am a comptuer noob, thanks for the help.