Ever since I have gotten a blue screen when playing Killing Floor it hasn't been working the same. When I start it up it works fine, but when I try to join a game, I can't disconnect from it when connecting and when it is loading I can't see the picture next to the picture of the map. When I finally enter the game when I am spectating I can't change the camera angles to differnet players or look around. But then when I finally get to play after the wave is over, I can't move, I can't shoot or zoom, and I can't click any buttons to leave or chat to the players. I don't know if it's my computer or Killing Floor, I have already tried re-installing but that didn't help at all. Please give me information on what I should do.