Wow that is strange, did you edit any files?
When you loaded the autosave did it have the same problem?
The one that you loaded, if you load it again does it always crash at the same point?
Did it have the flags messed up as well?
When you loaded the autosave did it have the same problem?
The one that you loaded, if you load it again does it always crash at the same point?
Did it have the flags messed up as well?