Slingbox Pro-HD -  problems getting channels from my cable net box

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    I have just bought a Slingbox Pro-HD. It is connected to my cable net through a Decoder produced by Kaonmedia, and according to letters on the Decoder it is a KAON KCF 2000NS. Trying to install it, I get "No video signal". I am also not able to switch channels by using the on screen remote control, so I have obviously not connection the Decoder. I Can however get some channels when I just tell the system that I have an analog cable connection, and then the on screen remote control also works OK..

    Hope someone can come up with a sollution to my problem.

     

    Regards Perb