Gtx 670 problems!

Hello there,

I apologize if this is not the correct forum.. tried to find the right place.

Anyways- I put together a computer based on advice from you guys. I was able to get it up and running but without the graphics card for a while due to money. Well, I ordered a evga gtx 670 and it came in today. I stuck it in the slot and connected power to it etc, then rebooted system and attempted to install drivers. It appeared to be working just fine and said it just needed to reboot. However, upon rebooting, Windows 8 will not startup and it keeps giving me a "video tdr failure" .. a couple of times now this has happened, and the only recourse that has gotten me back to a working OS is when it comes up saying I need to restore to an earlier date, which ive done and it puts me back to a previous restore point I guess. However, after the restore, the resolution is terrible, the video card is identified as microsoft basic graphics driver or something like that, not even hd graphics 4000 like it would have been identified before installing the card...

I so hoped this installation of the card would have been painless and was hoping to start gaming tonight... hope there is still a glimmer of hope for that. Any help would be incredibly appreciated. Thanks so much!

BTW- Computer specs are as follows:
Windows 8 Enterprise Evaluation (until I get a full version)
Core i7-3770k (have not overclocked yet)
2x4 gb g.skill ripjaw ram (8gb total)
Ga-z77x-ud5h mobo
corsair hx750w psu
... and the evga gtx 670

also- computer has been slower than molasses since attempting to install drivers for 1st time