So I just upgraded my system from a GTX 570 to a GTX 770.

Before the upgrade I was happily playing Crysis 3, but now I am running into a bizzare issue.

I have reinstalled my graphics card a few times but the DXDiag is still showing 10.1 for some reason.

Any ideas?

Thanks

What's your CPU? If it has integrated graphics, maybe the game is trying to run from there.