What do you mean by "I switched it ton run on Intel graphics"? I have been running on my config since very long, on SLI, never had a problem.
I tried reinstalling C2 old version, no success, same... So something is messing with it, but what?
I have a laptop with dual graphics and I can run programs on either one easily. I made C2 use Intel HD graphics and it doesn't crash. Using Nvidia seems to crash C2 however, even with new blank projects (had the same problems as you).
Of course I don't know how dual GPU/multi-monitor desktop systems like yours are set up.