[adelgado41]

I am not familiar with "the rolling vertical horizontal Green Line." Can you describe the line more clearly? Is it a horizontal line or a vertical line? How big? Is there any other distortion in the pix.

There is no "coupler" so I suspect you mean the doubler board. What troubleshooting was done? Under what conditions does this line occur? Which inputs? OSD? In the convergence grid? Can you post a picture? Is your set the same model as discussed in this thread?

I have Mits WS-65813 Diamond Version.
Is it a horizontal line or a vertical line? How big? Is there any other distortion in the pix.
The line is horizontal about 1/2" to an inch thick, and the line moves from bottom to TOP in the picture.

What troubleshooting was done?
The Tech looked at the picture with the DVD player, and the without my directv, and it was still showing. He tried convergence and the line showed up on the grid of the convergence grid.

Under what conditions does this line occur?
This Line occurs immediately when I turn on the TV. After about 20 or 30 min it goes away.