While I was playing a game wih the latest beta (b4), my game crashed to desktop without any error message. When I went back into the game and tried to reload the latest autosave, it crashed to desktop again (still with no error.) I tried loading an older autosave, which worked, but the game crashed to dsktop again on approximately the same turn. I've zipped up the game file and included it with this post. Edit: tried rebooting, just in case. Still crashed while trying to load, but this time it threw an exception, so I was able to run SmartException.