Ok, so I bought Sonic the Hedgehog, from the xbox live market place, the full game i got, whenever i play it, it still says i need to buy the full version in order to use this etc. I cant save, go on leaderboards, or anything and it still says i should purchase the full fame when i already have it. I have never even downloaded the trial version. Also, i've tried deleting then reinstalling the full game, yet it still says i dont have the full game. Can someone please help?