Today I just got my Fallout 1/2/Tactics set. I installed Fallout for my XP computer with no problems and played for hours it's an awesome game! Now taking a rest from it I decided I might as well install Fallout 2, now I did everything I was supposed to do but when I try to start up the game it just says "Running Fallout 2 requires CD" now my CD is in so I can't see what the problem is. Can anybody help?