Don't download anything while playing Arkham City.

Cos it kicks you back to the title screen once it's downloaded, thinking it's DLC for the game. Downloaded two arcade games last night and it happened twice and the most inconvenient moments.

Also is it just me who finds the game freezing certain times when loading up for the first time and you have to reset your Xbox?

That's happening to me as well.

Also.....the achievement for talking to Calendar Man on 12 certain days......I've just read on x360a that if you disconnect from Live and manually change the date that you get banned from Live for a week. Probably BS, but has anyone here got that achievement yet? May be more fun to do it legit anyway.