Hey, guys, thanks for the reply; nice to hear that the data isn't going down a hole. 
Sorry, FB, I'm probably calling it the wrong thing. It's a simple CTD, no messages; the game window just closes, and that's that. I can reload a save game fine, and keep playing, I just have to restart the game.
Another one for you guys, after only 4 turns.
http://pastebin.com/DtMAPiqY