Just finished setting up my new Panasonic 42PE50B yesterday. Great picture with good black levels (better than the Pioneer 506XDE, which I owned for a couple of days), even in dark viewing conditions. However, my question is that I noticed noise in the dark areas of the picture, especially in the black bars. I was able to get rid of this by lowering the brightness setting. Is this noise issue normal with plasmas? I also noticed a slight rainbow like effect against in some scenes with light backgrounds, but it was nothing too distracting. Anybody else noticed anything like this?