I recently upgraded to a Phase III dish for HDTV, feeding into a powered 5x8 multiswitch. I installed it myself on the roof of my house in place of the old 18" dish. Cable run is probably 60' or so. My southern exposure is heavily wooded with the neighbors' 75'+ pine trees and only one small break for the dish to peek through, so I've got the dish in the only workable location on my property. Problem is this: I can get good, solid 85+ signals on 101W and 110W, but the best I can do on 119W is 45 to 50, with frequent dropouts. The mast is perfectly plumb, I used a signal meter and swept azimuth and elevation slowly, carefully, in small increments, followed all the tuning advice on these boards, but couldn't get the 119W sat with any kind of workable signal (the picture on the 119 sat's HD channels has frequent pixellation, dropouts, etc). It was a sunny and cloudless day. Since I'm shooting through a small tree break, my guess is that there is some tree interference that affects the 119W, but not the other two. I can live with this if I have to, since the 119 sat only carries 3 of the HD channels, but I'd really like to pick them up if I can. My questions are: 1 - Could this possibly be a bad 119 LNB, or would that only manifest itself as no signal at all? 2 - Since I can get a signal on 119W, would upgrading to a GainMaster dish give me enough additional signal to make it worth the expense? If anyone has any insight on this, I'd greatly appreciate it. Thanks.