For those running 32 bit OS on Vista or Windows 7 to likely stop the crashes that people experience after 1 - 2 hours
For Windows XP 32 Bit
This worked for me! Thank you very much! I've been playing for 6 hours straight every night with no crashes whatsoever. I did get a nv4_disp.dll blue screen when trying to load the game once but one I restarted it worked just fine! Bump this!!