I currrently have a SWM setup so I'll only need one cable for the DVR. The problem is I can't record one show while watching another. I have reset the receiver numerous times and changed the tuners from single to dual in the settings menu. What I found when I changed the tuners is that on single I get all the channels including the HD channels. When I set it to dual I can get all the SD channels but the HD channels do not come in at all, I get a Searching for Satellite message. I can only record a channel while watching it in that single mode. Any ideas?