Best I can tell this is what the problem is and the update has not fixed it, occasionally my ATV hooked to my Onyko 605 via HDMI will either give me 1. A Black Screen but I can hear the Audio 2. Video but no Sound. Either can be fixed by pulling the plug on the ATV and having it restart. So I can only assume it's having an issue with the HDMI Handshaking. Anyone else experiencing these problems? Are there any settings I can set to fix this, I think I have the HDMI Setting set to automatic.