I've played most of the way through the game, and when I activate Dark Vision the screen looks black and white, with yellow people, green items, and blue security systems. I also saw a playthrough in which Dark Vision turns the screen a sepia tone. I assumed my video card couldn't handle the sepia until it suddenly changed, seemingly for no reason. Dark Vision was a beautiful sepia color, and I could actually see my surroundings. I saved, quit, came back an hour later, and it's back to the black and white version. Has anyone else experienced this? What color should Dark Vision be? How can I change the color (if I can)? Thanks for any advice. I'm running Windows Vista with an ATI Radeon HD3450.

(((Chad)))