Micro$oft have started banning users who have connected today when using hacked fw. It dosnt matter what drive you have and what fw version. You will be banned! Warning to all. Ive just restored my original FW back to my drive EDIT: THIS MAY NO LONGER BE THE CASE AS PEOPLE WITH UNMODDED 360'S HAVE BEEN GETTING THE SAME ERROR MESSAGE. IF YOU ARE USING HACKED FW THOUGH I WOULD ADVISE EXTREME CAUTION TOWARDS CONNECTING TO LIVE UNTIL THIS HAS BEEN CONFIRMED EITHER WAY!