Hi all, I'm a AVSForum poster and found this wonderful sight from over there. I'm hoping you all might be able to assist me with a frustrating problem I'm having with my D* reception. For the last week or so, all of my HD channels either don't come in at all (searching for signal message) or come in with alot of pixelization. All of my SD channels work fine and have had no issues with them. Before last week I have never had any problems w/ any reception, outside of the occasional thunderstorm hosing up my feeds. I had a DirecTV tech come out to the house last weekend to check it out. My signal strength on every single transponder is over 90%, except for the HD one, which is hovering in the 30-60% range. The tech said that everything is set up correctly, and he thinks that a tree in my neighbors yard is blocking the HD signal, and there's nothing he can do. Does this sound possible, or should I call out another tech? I am having a hard time believing that all of a sudden a branch started blocking JUST my HD reception. Wouldn't I see problems on other channels as well? Thanks a ton for any opinions you all can give me, it is much appreciated.