- First, which version of the game are you running?
- Have you updated all your drivers? ATI/AMD graphics drivers in particular are trouble.
- What’s your PC like? CPU/RAM/Windows version etc is all useful stuff.
- Is there anything in particular you do that might cause the crash?
- If all else fails, upload a crash log to somewhere like Dropbox so @not_owen_wilson et al can have a look at it.