I recently upgraded my machine with a GeForce GTX 680 and I couldn't wait to start playing DX11 games. I download STALKER: Call of Pripyat from Steam, all eager to play, and much to my dismay, I've encountered several problems with the game.
I searched around the internet, and I've had some help with the fine folks from the Steam forums, and I was able to figure it out.
I got the game to a point where it is now working flawlessly. Check out my blog for a full list of little tweaks I did. Hopefully it will help someone here.