[Crash] V0.91 - alt tab causes crash

I've been told to report all alt-tab crashes - so here is my first one.

FYI - I was able to play a few turns, alt-tab, return, and play some more.. but eventually my last alt-tab caused the crash.

no dump collected (thanks Windows)

I did have the debug.err file:

http://dl.dropbox.com/u/9186076/alt_tab_crash/debug.err

and last save file :

http://dl.dropbox.com/u/9186076/alt_tab_crash/AutoSave.EleSav

attempting to disable windows error reporter to see if that helps in future crashes (so I get a dump file instead of windows trying to do something with it).