Game exits half way through end turn...

I looked and couldn't find the solution to this one. Here's what happens, I've been playing for about a week now, after I decided to reinstall the game (Thanks 300!). Anyways I've been playing SP Campaign and ive been at it for about a week. Now when I hit End Turn, it'll go through everyone's turn, gets to Thrice and the game exits. I tried reinstalling....

Hi bkircher,
May I ask if you have Gold, R:TW and BI together (not Gold) or just R:TW? Thanks.