With the latest software, when I change shows, the audio switches to a a pulsating noise. I run a short HDMI cable from the hopper to an emotiva UMC-200 pre-pro. This happens when going from a live show to a DVR show, or even switching between two PIP sources. It was really a bummer for football today. My best work around was to hit mute first, then do a PIP switch, then hit the source that is already selected to resync. Has anyone else had this trouble? I hope I don't have some weird gear tha is out of spec.