i tried playing halo 2 on xbox live yesterday, i just created the account and i got xbox live, but when i tred playing halo 2, it started the game and it told me to pick my user, then pick my xbox live account, then when i click that and type in my password it says i have a important message from xbox live and it says “go to account management” or “continue offline” but when i go to messages i dont have anything…any help here please?