Ok...so...Heres hwo it goes.I had WOW normal and burning crusade,and then i got the other expansion packs.i got Wrath of the lich king abd cata.I downloaded Wrath of the lich king and got the loader update.Then i couldnt start the loader cause of valid reader or something.I sahrugged it off and tried downlaoded catacylsm.when it got to 98%,it failed.i also tried Wow repair,it got stuck on 12.3MB now the loader is 'not a valid win32' application.What now?