I have a viewsonic42"VPW450HD plasma thats about six months old. It played fine for the first 4 months or so, then developed green dotted shadows on anything black or dark coloured. It's worse of all on DVD playback(completely green smears). I've tried a good surge suppressor but no change. I have a DVD player, with s-video connection, Playstaion2 and home theatre connected. Finally i left the TV unplugged for a week, and when i put it back on, everything was fine for about half an hour. Then the green came back. Have i a fatal problem with my unit? P.s. If this is any help, i live in the carribean where the heat and humidity are quite high.