LG DU-42PX12X Pixel Orbitor

Hi,

I have a LG HDTV plasma model DU-42PX12X when the orbitor is on and in the

4:3 mode (pixels) move from left to right and down and up. I notice the top of the screen moves down to far and I get a 1/8 inch then 1/4 inch gray bar at the top. Then when it goes back up to original starting point the bar goes away.

Is there anyway to adjust for this so I don't get this? This only happens when orbitor is on and in 4:3 mode.

Thanks