I have just got back from a LAN and reconnected my 360 to my Sammy LCD TV to begreeted with the 'Not Supported Mode' display 
The screen it was plugged into at the LAN was running 1280*1024 and the TV won't support that. I need to set the X360 back to 1280*720.
Can one of you lovely people tell me the eact button press sequence to get from the initial boot up screen to the resolution changing screen please?
Plugging the X360 back into the monitor isn't an option as I've wired up the X360 now andI ain't lugging it all back upstairs :|

The screen it was plugged into at the LAN was running 1280*1024 and the TV won't support that. I need to set the X360 back to 1280*720.
Can one of you lovely people tell me the eact button press sequence to get from the initial boot up screen to the resolution changing screen please?
Plugging the X360 back into the monitor isn't an option as I've wired up the X360 now andI ain't lugging it all back upstairs :|