Problems with Cable Box and Audio/Video Amp

[DaveI1]

Hello All

I am having persistent problems interfacing my Verison Set Top box and my Sony audio/video amp.  Often if I switch the amp to other devices (eg DVD player), I lose the audio when I switch back to the cable box.  I have to reboot the entire system to get the audio back.    When I spoke to a Verizon tech about it, he seemed aware of the problem but was unable to offer a solution.  Has anyone else encountered this problem?

Thanks in advance for your help.