In the grand campaign with the Britains, I'm not able to complete a turn because the game freezes when the thirteen colonies should be moving. The game doesn't completely freeze tho, the little loading watch or whatever still rotates, but it never completes the thirteen colonies' turn. I put the graphics all the way low and even tried reducing the resolution to see if this made any difference, it didn't. I haven't tried reinstalling it but installing this massive game is a pain and takes a long time. Any suggestions that wouldn't involve reinstalling would be nice. System specs are provided and I'm also using a laptop, not a PC.

System Specs: Sony Vaio
2.0ghz duo core
2.0gb of ram
32-bit windows vista
Geforce 8400m GT