Horrible hangs/freezes

[plutomaniac]

Have you tried:

1) Doing a steam file integrity check as mentioned at the troubleshooting guide
2) Running the game with one card (SLI/Crossfire have not been tested, scaling might not work properly)
3) If you experience stutters, try stutter7fix which can be found HERE (follow the instructions, delete the .cfg file and continue your game. Any changes will be visible from the next level.)