So, I bought a bunch of parts for a brand new computer and completely wiped my hard drive because the coding had been messed up, i installed original sins, then entrenchment and diplo. i went to play diplo and it asks me to register my account and what not, i go to the gamestop owned impulse and get the product code to enter it in as the serial number for the game, but it says its already been used, so I can't play my game, this happens with original sins and entrenchment. Don't know if this mightve caused a problem but i went from windows xp 32-bit, to windows 7 64-bit. Any suggestions at all would be nice, ive already tried using the update Serial option on sins launcher.