The audio becomes garbled and looses syn with video after ~5-10 seconds of play. I've tried teh latest stable firmware and have the beta firmware installed with the same results. I've test the video feed "in" by plugging the HDMI directly into the TV. There is no know problem with the feed "in". The problem persists with any combination of HDMI, VGA out, and pass through. Here's a video of the presentation.