And since Jags can't post at the present moment , I'll just copy and paste what he pm'd me, Krook.
If you start the xbox in the dashboard, it won't sign into live.
But, if you keep the disc in, turn off the box, then turn it on, it'll load the game and sign into live.
Just don't go back into the dashboard, 'cause then it won't keep you in live.
(send this pm to krooks as well, since I can't post atm)
anyhoo I should get ready for work. Try not to let Nick level up more than me before tomorrow, k?