Ok, ive had this problem since about christmas of last year (12-25-07) when I put halo 3, guitar hero (3 & world tour) it disconnects me from xbox live saying that i need to update it. but when i try to update it my xbox freezes!!! so i cant play those games on xbox live and i have no idea why! Please help me!!! i really want to play these games on live with my friends!