I am new to the HDTV scene. I have an LG 42PX5D. I also had Direct TV come out ad install the H20 receiver and I get my local channels in MPEG4. I am having some trouble with the picture. I have hooked up my H20 to my TV via HDMI. I am seeing boxes on the screen. They are lighter than the rest of the picture. It is more noticeable on black screens than any other color. My DVD player is also hooked up HDMI and it produces a great picture. Does anyone know what this could be? I am thinking of switching to component cables, but I would prefer to figure out what is wrong first. Any help would really be appreciated.