I have a Samsung D7000 plasma that is nearly a year old. The picture is great from a distance, but when you are up close there is a considerable amount of green / red pixels that are only visible in certain scenes. In a completely black area, it will appear black, but other times if it is near / approaching black you may see some red / green snow. Is there anything I can try or do I need to call for service? I have tried different HDMI cables / sources. Picture is beautiful from a distance and if the image is solid the red / green pixels do not appear, but I don't want to ignore this if it could turn into a larger issue.