Every time that I try to start up Call of Duty: Black Ops on my Xbox, it disconnects me from Xbox Live. (I'm 100% certain that I'm not accidentally prompting to not update my version of the game, as I just played the game a few days ago and I have set my controller down and watched all of the "introduction" scene to make sure that I wasn't making that mistake.)
I cannot reconnect to Xbox Live while I have the Black Ops disk in (It's a 100% legal Black Ops disk bought from Gamestop the day that Black Ops came out. It has worked until today.) but the moment that I go to the Xbox Live Dashboard, I automatically reconnect to Xbox Live again. I can safely be in a party in any other game as well.
Is there anything that I can do, or should I just completely stick to MW2 and Halo Wars?