I played a singleplayer game, Huge-Multiple with 7 AI. Had absolutely no problems with peformance, even in large fleetfights until 3hrs50mins. Then suddenly the game dropped to 1-2 FPS, became unplayable and finally crashed. When I load from the save, the game crashes against after some minutes. My Hardware is good enough, and I don´t have a clue why the game keeps crashing, or why it suddenly became unplayable. Lowering the graphic settings didn´t change sh*t. I uploaded the crash-dumps, I´m using Windows 7, 32bit:

http://www.mediafire.com/?4045b09w33iova8,ndddqettvd16zb8,cx91c8jcu3024q0

I would welcome any idea how to solve this problem.