For some reason starting last night I am getting gray side bars on HD channels instead of the full widescreen effect. I am not sure what the problem is, the channel banner says "HD:gray bar", so I assume it has something to do with the receiver.
yup and is incredibly easy to fix... push the Star (*) key till it says HD:Normal or HD:Stretch (depending on whether you are watching HD or SD repectively) alternatively you can use the page up botton to toggle these as well. If you are using a Rear Projection TV I suggest the stretch as it wears the phosphors evenly... same for plasma