My evga 7900 GT Ko is dead...

So, after a week of owning a brand new home built pc, I began to notice some video issues.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=9&t=24783
Here is the weird thing. I went into my boot menu and tried last know good configuration, and my pc booted! It booted to before I had the 91.47 drivers installed, so its like my pc doesn't recognize I have a video card but is still using it to display, because I don't have onboard video. This is weird...at least I can access my homework and internet still though, its not totally useless right now.