I have two satellite cards working fine with ProgDVB Pro and they work fine by them self but when I try to use the PIP option to open in new window and it opens the new channel but will not render it eventhough it shows quality and signal strength, only one will render at a time, the other one shows a black screen. It does not matter which one I try first, the 2nd tuned channel will not render at all. Ideas??

Do you have sound from second channel? It is looks like problem with video render in video driver. You can change it in settings->options->video