My game has been crashing a lot recently but I would just reopen WoW. This time it crashed and I tried to open the game back up again, it says "Unable to validate game version" when I try to log in. I read that the only way to fix it is to reinstall the entire game since I'm on a Mac. My question is do I have to reinstall the first WoW, BC, and WotLK all over again? And if I do, do I need the cd's/key to install them? Please help! Thanks lol