I get removed from the game (error 3007) when I play single player. I do not have this issue when I play co-op. Although, when I play co-op the game will crash and close. Error 3007 occurs about 5 minutes into any single player game and the crash in co-op takes much longer (approx. 45 mins). I've seen posts about routers, wi-fi, and multiple players on one connection. I am on a hard line cable modem. Is there any work around this? It's odd it only occurs in single player. I don't know what is going on with the co-op crash, I'm on an IMAC running OS X 10.6.8 and everything is up to date, with a 3.06 GHz intel core 2 Duo. Any help from a blue and/or a report to the tech staff would be appreciated.