Thank you.
http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=391050&an=I checked this thread. The guy Dante 123, seemed to have crashes during saves to, but he had other problems. If I understand his posts, he only update his vid card drivers and the save crashes disappeared.
The problem is, I have the Nvidia GTX 260 with the 196.21 drivers. So I don't see a way to update them for now. But maybe reverting to old drivers from June. So it could be a vid drivers related bug?
Anyway I'll try to turn off the anti virus. Will keep you posted.