Sounds like a "stuck pixel". I've had one stuck red since I recieved my Sony 60" Grand Wega 1.5 years ago. I was told by Sony you had to have 3+ before they'd replace the set. Have to admit we never notice that pixel except when the screen is grayed or blacked out, even though it's pretty much in the center. Doesn't sound like yours is a huge deal either. We love our set.