Been about two years since I've gotten on the AVS forum. Bought Samsung 6400 58" plasma in 7/10. Setup at the time using Mantis settings. Absolutely no problems with pictue quality until recently. Notice whenever the screen is supposed to be white (usually during commercials or a white cloud scene) there is a pinkish purple band that appears across the middle of the screen horizontally. Been experimenting with the settings trying to get it to go away. White balance, etc but no luck.
Kind of annoying, but not really noticeable during normal viewing of movies, etc. anyone have any suggestions for fixing this? My firmware is rather old #1022.