This is crazy, but I can't get to the "Options" tab at the top right of the home page. (Roku Express, just installing it new.)
The reason I want to do this is that the picture on my TV is cut off on both sides and I am hoping to fix that. This is not an issue when watching cable TV; only when using the my new Roku.
The Options button on your Roku remote is only available sometimes (when there are actually options available). You can't move to it. If it's dimmed then there are no options available for that screen/situation.
It wouldn't help you anyway. There are no settings to adjust the screen size other than the resolution settings under Settings->Display. If your picture it cut off try using the button on your TV's remote for zoom or picture size or aspect ratio or whatever else the TV's manufacturer may call it.