If you have the Dish 500 system and find that the dish is hard to setup, look at the back of the dish see if the plate that is used for the setting of the offset is away from the back of dish causing the off set (SKEW) and angle to be way off ,to get it back use a small clamp to bring it back in and hold it in place and still can be moved if needed. The bolts two each ride in the slots but do not support the full range of movement and let the dish pull away about 1/8 to 1/4 inch that relates to ten miles at 23000 miles to be off . Ron Bissett in metro Louisville KY