So here's what I got. Feeding with proscan no problems. My PC goes to a HDMI output to a splitter. I can select between a cable tv box or the PC. It seems weird when I deselect the PC to the monitor as the feed continues the sound of the feed comes out of the motherboard small speaker? The beep speaker I call it. When I select the PC to the monitor at the hdmi splitter it stops doing that? Anyone know how to mute the motherboard beep speaker?