Me too - the display driver crashes, the screen goes black but I can hear people fighting. It responds to alt+f4 or alt-tabbing immediately. (my windows doesn't have a spaz though it works fine in the background)
Running on a laptop with two graphics processors, it's setup correctly to run on the dedicated gt 640m le. Latest geforce drivers. I played a few days ago (maybe up to 3) without problem with the same drivers and configuration. Just the current version seems to be doing it.
No actual crashes in the CRPG logs, but there are mentions of this 5 minutes before the display driver crash:
[14:39:08] SCRIPT ERROR: Invalid Mesh ID: 726
[14:39:08] - Tableau material tab_game_troop_label_banner (line 6, opcode 1992, modifier 0x0)"
In windows event log "Display driver nvlddmkm stopped responding and has successfully recovered."
I'm going to try reduce graphics settings and see what happens. Right now they are at the maximum settings I could put them on.