When I changed the settings to 1920x1080 it crashed but when I restarted it was set to the correct resolution and did not crash during game play.
Interesting though, it does crash when I quit to windows, so did the demo.
BTW - All drivers were updated a few days ago. I'm running Win 7 64, i7, 12GB, with a GTX 560 Ti card (DX 11) on a 40" LCD (HDMI).
Thanks for the replies though.