We're having Dish installed next week, and I just wondered if there was anything in particular that I should check for during the install, or before the installer leaves the site? I have read a lot of things in the forum about poor alignment, and signal strength etc, so I would be very grateful to know of anything I should be looking for. The Dish is to be installed in Orlando, FL, and is a 722 feeding a two TVs. We are considering either a pole mount of wall mount. Many thanks for any advice.