During Live Matchmaking lately Ive been receiving this message frequently. I have to reboot my Xbox just about every 2 matches now. My Xbox is under 2 years old so I doubt its the problem (none of my other games give me problems either). The disc itself looks just as good as it was the day I opened it. So Im curious as to if this happens to anyone else, and any possible remedies. Im considering buying a new Halo 2 game and/or exchanging my Xbox with a new one. I feel this frequent error is a ridiculously irritating nuisance and I shouldnt have to re-purchase anything. Any responses would be appreciated.