Pretty late in the game and it just crashed to desktop with no warning whatsoever after clicking next turn.

debug.err

I believe my precise actions were initiating a move order for a stack consisting of my Sovereign and 3 soldiers (the strongest the game lets you build at this point).  I was just wandering the map looking for odd map problems to report.  Possible things that could be related too it are recent order to build a 2nd farm in a city (It's possible it was to be complete next turn, but I wasn't tracking it that closely), also possible is lots of army cost reduction research.

Posted to FogBugz tracking system as well.