occasional strange picture
I have a Panasonic Viera 42" 1080p/600hz plasma. It's the first HDTV/Plasma i've ever bought. The pictue quality is fantastic, even on my Low-Def Verizon FiOS TV(upgrading to HD package soon). Every now and then though, and this especially with overhead shots of, say, a body of water next to a city, I notice a strange checkerboard-like pattern in the water. It only seems to show up when the dark area is in the same screenshot as the light area. Also, as the actual picture moves across the screen, the squares get lighter and darker like they cant make up their mind which they want to be. Is this relatively normal for a Plasma, or should I be concerned? I have Geek Squad coming to calibrate it to the room it's in(a somewhat dimly lit basement/man cave in progress)in 2 days. Will it go away after that?