I have recently purchased a new Zenith LCD TV- 52". The one problem that is the most annoying is that on bright colorful scenes the picture looks great. However, on darker scenes, or parts with shadowed areas the picture is horrible in these areas. I don't know much about this. I have tried different brightness settings and contrast settings, but nothing works well. I don't know how else to explain it other than in shaded areas or on dark scenes, the picture is very distorted and sort of breaks up into little "color blocks." It looks horrible! Does anyone know how to correct this problem? Please help?!