I try to boot up Black Ops 2 and I get an error that reads, "DirectX encountered a unrecoverable error". It refuses to boot up. I tried to uninstalled my graphics card, reinstalled the new nvidia beta. Uninstalled my directX and reinstalled it with the provided installation in which was included within the game package. I also verified the cache. Nothing I have read up on works. Need some kind of assistance asap!
Many people are having this problem.
Here are some links to other pages. (no resolution as of Nov 13 11:53 EST 2012)
My Steam forum post.