LOTR display screen is getting garbled/ghosted after several hours of play. It has happened twice now. If I play for an hour or two tomorrow night, it should be fine. But family played several hours today and I played another hour or two this evening and screen will started to fade, but still be visible then (for example) when you 'Bash Balrog', most of display disappears or fades in and out. Any thoughts or comments of what could cause this? I checked the contacts and they all seem to be fine.