Just got this email for Ghost2Fitters
Please note that Microsoft are now banning all 360's being used for online gameplay with backup discs regardless of firmware!
As the only possible use of an upgraded console is to backup games which you own we strongly recommend to customers only to play original discs online. Online play with backups is at customers own risk.
Full news on this can be found on all major forums such as xbox scene and xbox hacker & should a new firmware be released we will notify via news letter.
I hope this information helps and be careful :thumbsup: