When I am viewing in any widescreen mode I can see a grid of faint white lines on the TV, running diagonally across the screen. The lines show when watching anything with a dark background and are very annoying when watching a DVD. The lines dissapear when in 4:3 mode. Is this a limitation with widesceen TVs or do I have a problemwith my TV. Any help with this problem would be most appreciated.

That would sound to be RF interferance. Are you SURE they disappear in 4:3 mode, or are they just harder to see? Have you tried disconnecting cable TV from the set (if you have it)?

see if the channels that are affected are the same one that are broadcast over the air in your market. if there are your getting ingress into your coax system.

I think that they are retrace lines. I can see the lines on all channels. They are best viewed on AV3 with no input(Black back ground). Looking at the 4:3 screen there is no evidence of the lines. It is only when the set is switched to 16:9 mode that the problem occurs. Has anybody out there any ideas on the cause.