Screen keeps going black in SCoB turn 1

I just entered SCoB for first time (yay, finaly).
And then my screen turned black for few seconds, and then it happened again, and again.
I lowered settings to lowest possible but it still kept happening. Totally at random while fighting or just standing and talking.
Then i crashed twice. :/

I got the "Display driver nvlddmkm stopped responding and has successfully recovered." error every time.
Googled fixing it, going to try some fixes.
But i ran games with higher requirements and this never happened :/