I'm having the same problem. I've been through 3 EEPROMS!!!!! I ONCE used the mechassult lunix boot hack to run evox, and backup a game. While running the backup I inadvertantly hit "sign into xbox live", and was then banned. So I got a new eeprom from a friend, and deleted everything I could find related to what I had done. It worked for 2 days, then I was banned again. Got another eeprom, again worked for a couple days, then banned again. I think with the new Xbox's (Halo Green) there is some hidden file somewhere on the harddrive that can tell if a modded bios has ever been run. No matter what I do I always get banned again. Looks like I'm gonna have to buy a new xbox if I ever want to get on live again.