So I am anticipating upgrading to Windows 8 so started doing some research on compatible hardware and drivers. I discover I am a few versions back on my video card drivers. I have a PNY GeForce 680. I decide to update to the latest WHQL driver which is also compatible with Windows 8 64Bit. After updating to the driver while browsing the internet in Chrome my computer reboots. It doesn't blue screen, just shuts down and starts to reboot. I then get a BIOS error saying PCI-e card in slot 2 error which is my video card. I shut down and reboot again and all seems fine only to have it randomly shut down again. I try system restore.....haha, when does that ever work. I try to install an older driver, not quite my original driver, but in that direction. No worky. I even try some BETA drivers. Some older and some newer than the latest WHQL driver. NO dice. Each time I install new drivers to try out I launch Vimeo and Youtube and play HD videos which seems to trigger the freeze. Every time I try the latest driver in addition to some newer BETA drivers it reboots. Finally I go back to my original 301.42 and "stress" test my system with the streaming videos and all is fine!!! I have tried Driver Sweeper and it seemed to remove all of my old drivers but cannot for the life of me figure out why it will not let me update the drivers.