Start > Settings > Personal > Buttons > Button 1(Press & Hold) -- Change to <Rotate Screen>
And btw most of us are using Sprint TV without it getting suck in landscape mode. Make sure you are using the 'exit' command and not closing it out using X-Button.
I don't have the rotate option listed. When I look in my programs folder, it isn't there either. i do have the rotate icon on the launcher app of the today screen. Any ideas how to find where the program file is and how to assign it to the button?
It isn't in the programs folder but you should see it when you go where I listed. It is at the top of the list because it is listed as <Rotate Screen> no just Rotate Screen.