This is annoying as fuck. I got BF2 yesterday, and I was overjoyed. I played singleplayer, since it was recommended. I figured I was good enough to play MP. When I attempted to join a server, it said "CD Key Not Valid"

I was enraged. I looked online to see what happened, and everyone said to redownload BF2. I did. Same thing. I downloaded patch 1.41.I have seen afew things about regedit or w/e but when you get to 9392, I cant rename it.