Anyone have info on any limitations of install of the new mpeg-4 dish? Only reason I ask is because I spoke to an installer (he's yet to actually see or install the new dish in our market) who is fearful (because of size) of installing the new dish on a roof? He said he thought it would be more stable as a ground mount? I don't think it is because he is lazy...he installed my phase-III dish on the roof and even came back a few months later to realign...at no charge or complaint? I know I ran across some photos of a recent install of the new dish...I thought they showed it on a roof?