I was playing my rather stable game when it crashed. When I tried to relaunch the game I kept crashing before even getting to the main menu. Then I opened of Wrye Flash and got some error message about Fallout_default.ini. I checked my installation directory and lo and behold the file was missing. Fortunately I had a backup. Has anyone else had this problem? Also I recommend everyone back up your fallout_default.ini, and if you're getting crashes, check that it hasn't run off.