My guide has been burning-in on my HDTV when I leave it open for at least a minute or so. I can see the lines from the guide on the picture, but then they eventually start to fade away and by the next morning they're gone only to come back again when i re-open the guide. It's an LCD and I've only had it for about two years. I do use the guide a lot, probably more than most people do. Is there anyway to fix this or stop it from happening?