has anyone experienced convergence problems with their projection TV's. My tv started to act funny. The top and bottom of the screen convergence is off, you can see the 3 colors not being aligned. the colors are off by 1 inch from each other. The middle of the screen is fine.This only does this on start up. If I wait an hour or so the tv fixes itself. You can actually see the picture switch from being aligned to not being aligned. Any help would be appreciated. Calling the service line tonight.