Same issue here. Random crashing to desktop with no correlation between events, no error messages and it doesn't even crash the same way every time. Sometimes the game just closes without warning or message of any sort. Sometimes it will actually give the windows message that the program crashed.
Windows 8.1 Pro x64
i7-2700k @ 3.5GHz
ASRock P67 Extreme4 Gen3
GTX 670 2GB
16GB DDR3 @ 1866MHz
Game installed on Samsung 830 SSD
335.23 NVIDIA drivers
No temp issues.
Attempted the "Repair" option on game, toggled V-Sync and a few other video settings.
Additionally, here's a pastebin for the various crash errors from Windows Logs; http://pastebin.com/ubMFJWeH
nvwgf2umx.dll was the most common faulting module.
Pastebin for dxdiag: http://pastebin.com/YUP2FXQY
