In my theater room I am still using a 1080P projector. I currently have a C61 in anticipation of going to a 4K projector sometime next year. My C61 is connected to a HS17 Genie2 over coax. The problem I have is that the C61 has a blackout skip a couple of times a minute while watching a recorded program. I believe this skip is a known problem with the C61 connected to an HS17. My question is whether it has been determined if the problem is with the C61 or the HS17, or the connection of the two? I have a couple of C41's that D* never asked me to return so I could test the connection theory by replacing the C61 with a C41. Do I need their help to do this?