OK Guys, Here's one for you that has me a little worried. I've had my set for about 90 days now and everything has been working great. I've done numerous tweaks including many service menu changes. All of my original values, as well as my new values are written down. Last night I watched some HD TV and went to sleep, leaving the set on with no source, just a black screen which I've done many times. When I went to watch something today I was greeted by an overly blue screen. At first it looked as though the green gun had failed, but I brought up the convergence grid and the red, green and blue, were functioning normally. In fact the convergence lines were white. This led me to believe that the culprit was the greyscale controls. I entered the service menu and checked all my settings. Upon investigation, I noticed that the BCUT setting had changed from 1-7F to 2-7F, hence the overdose of blue!!! What could have possibly made this value change while the set was still on?! Any clue? Marc.