I'm stumped as well, and I know my way around these panels pretty well. Sounds like getting a service tech may be the best bet. If the whole screen was flipped, I'd have an idea - even though I can't post service menu direction here - but this one I have no idea.
Last night I got in and switched on my Samsung LCD in the bedroom (it's an old samsung LE32A41BX relegated after an upgrade in the living room), I hit the on button twice by mistake and half of the screen is now showing round the wrong way, does anyone have any idea what I've done do it.
I've went into the service menu (which I've never done previously) by hitting info, menu, mute and then power and reset it in there but nothing has changed.
Even the service menu was reading backwards.
Does anyone have any ideas at all?, or even a page where I can find out what the settings should be in the service menu??
I'm no dummy when it comes to TV's etc but this one has me stumped.