I have the new AT9 dish and a 6x8 multiswitch. The new H20 works great, but the old HD receiver I have hooked up upstairs and I'm having some trouble tuning to channels 70 and 71. They're both on satellite C so I think the multiswitch isn't recognizing the signal to change to that satellite. The cable run is the longest in the house so I guess I need to try to move the receiver to another location and see if I still get the problem. Sometimes the channels work but other times they don't. If it ends up being the cable run, what can I do to fix this? I can't make the run any shorter and the multiswitch is unpowered. If it's the multiswitch, would DirecTV send me a new one through their protection plan? I don't want to have to wait for them to send a tech out; I don't wanna sit there all day.