I’m having a weird issue with the sound on the “HDMI In” port on the front of the Oppo BDP-105. The HDMI port in the back seems to be fine. I currently have a one year old AppleTV connected to the front port. When I switch programs from one show to another, a horrendous noise, like static comes out of my speakers. Nothing I do makes it go away, except to switch to another “HDMI In” port and watch a program from a different source. After that, when I go back to the HDMI In port on the front of the Oppo, the sound is fine again. Is there some basic incompatibility with certain models of AppleTV and the Oppo BDO-105? Is there something unique about that port on the front of the Oppo that I’m not aware of? Any help would be appreciated.