Hello,

Before anyone says "Turn off your antialiasing," it already is. And anyways, my problem is not the same as the general black screen constantly. Mine comes rather randomly. Will be playing fine for 15 minutes then everything will just go black. I can still interact with the game, I can hit escape to save and load and whatnot. The other issue is kind of hard to describe, but I'll try my best. There are random flickerings, almost laserlike, and they're yellowish/orange. Sometime they're really small, and sometimes fairly large. When I looked directly at a torch once the torch was weirdly pulsing . I'll try to get a screenshot but they flicker very fast so it might be tough to capture. It seems like these issues happen after about 10-15 minutes. If I just reload the game they're gone generally (black screen at least, flickering is a toss up). VSync is on.

Any help will be apprecited.

I didn't find the right solution from the Internet.

References:
http://www.grimrock.net/forum/viewtopic.php?t=2597
Infographic Video Agency

Thank you.