I first started playing the game just fine. Saved my game, got off for a few hours. Came back to get back on and everything is black. When I look at a light source in-game everything turns black.. I've been trying to fix this for a while and still can't manage to fix it. I even bought the game again to see if the files would be different, didn't change anything.

The problem seems to be correlated to the gamma setting. Turning the gamma up after the lights become dim fixes the problem somewhat, but not entirely.