My picture on the Toshiba tn55x81 is bowed down in the center top and up in the center bottom. I can see the S in different colors offset in the service mode. I see no service convergence grid. The max displacemtn of the picture moon slice on top and bottom is about an inch, Any idea what might cause yhis

Televison & Video - Toshiba - TN55X81 55" Rear Projection Television