Ready for a head scratcher?

My PRO-1150 plasma has a strange red snow effect. It only happens on pixels that are bright, and intense, no matter what color is showing. Dark areas of the image are still perfect even if it is a dim white light showing.

There is also a small amount of temporary image retention of the red snow. Meaning, if a bright area goes dark, a ghost of the red snow is left in the darkened image.

With no image showing, just a blank source, there is no flickering, snow, or anything. I've tried the built in screen refresh ( white bar...