Very odd. I tried to get Dark Sector to work, and then bought it on steam for cheap, and IT STILL DIDNT WORK. The resolution changing would just freeze the game, and it had no sound. Same thing happened to me when i tried to get it to work on vista. I am thoroughly dissapointed as I have heard about how great of a game this really is, and it does look really good. I just dont want to see any more of this shitty ports, they end up just making a good game a distant memory. RIP PC dark sector.........