Have no C- Band dish but a 39" KU dish with rotor.The 920 is maxed out to 1920 TDT.I can receive channels on the A2 map but not X4. I can't select X4 but I can see it under programmed satellites.The Starchoice fixed key channels do come in.I can use the A2 map and get lots of not subscribed channels on X4.I can manually tune Americain Life Network but it says not subscribed.It is fixed keyed also. Why can't i receive this channel but can receive fixed channels on starchoice? The channel descriptions work on X4 channels.