I also have had a long standing problem with random crashes to desktop and complete system lock-ups while playing. Sometimes its 30 seconds in, sometimes 30 minutes or more. Completely random... It does not seem to happen in the normal game, only in the mod. I have downloaded the config files and installed the low end setup though my computer is not that bad, just trying to see if it helped and it did not. If anyone has any ideas please let me know. Thanks.