Ha! The installer didn't show up on Saturday to fix my reception problem so I took matter into my own hands and got up on the roof to fiddle around. Background: I have been stuck with low signal quality for weeks (~65-75, with doupouts everytime fluctuates under 70). They previously installed a bigger dish (24") but it didn't help. I tried moving the dish to 3 other locations...no improvement. I finally took off the LNB to remove my meter feed and noticed the meter peaked as I pulled the LNB out about 2". Hmmm....experimented around and confirmed I had a myopic dish!....it was focusing the signal about 2" beyond the end of the LNB mount. So I pulled the LNB out to the new focal position and fixed it to the mount with electrical tape and a couple of wooden splints. Now signal quality is 85 and no pixellation. I have another appointment with the installer next Saturday to get a more permanent solution, but I thought I'd post this solution here in case those experincing low signals want to tweak. It wasn't my box or my neighbors trees after all.