Everytime i have gotten a few years into the game it crashes when i end the turn. This happens both in paific and Europe maps. If i have saved that turn and load then i crashes when i end turn again. It always starts crashing at different dates. One time when i loaded a file a few turns before the crash then i started crashing at another date instead. What is this and what can i do about it? I would be very grateful for any help.