I am tethering from my phone to laptop to xbox via pdanet and a new update came out recently but i havent really tried to update til black ops came out today! I won't be home or anywhere near a wifi connection for atleast a month...and theres no way I will be without black ops xbox live...So if anyone knows a fix for the update via tethering and why it wont work please post immediately! P.S. I think its the update for the new xbox layout theme for kinect or some shit thats what i heard. Thanks!