Mon Oct 28, 2013 4:25 pm
There is a memory problem it seems, can you try reducing memory usage (it's an option in the Options window, system tab) to the leftmost position. same for max texture size. Then restart the game. if it seems stable, push the options one notch to the right and try playing again.
if you get crashes, then you should probably be saving your turn regularly, just in case. The game saves your orders when you click on end turn but that's not enough in your situation.

Hofstadter's Law: "It always takes longer than you expect, even when you take into account Hofstadter's law."