Very glad I found this thread!
Hi, I got the 370 about a year ago (in the UK) and it's perfect (well the digital sound card degraded or something and it had to be replaced but apart from that it's been perfect), but I'm having issues connecting my Mac Mini to the HDMI inputs. Once connected, every 2-5 seconds the picture suddenly drops, as if it's lost signal (it goes through the whole "HDMI 1 - WIDE - 1080p" before the picture suddenly comes on again, but it's literally constant. I don't get more than 5 seconds of picture before it happens again. I restarted the Mini and the funny thing is whilst it is starting up (as in on the white screen with the Apple logo) the picture remains on, but as soon as I get to the login screen it starts to drop out again. I apparently can't get surround sound from my Mac Mini (2011 model) any other way, and both the Mac and the 370 are fully updated to the latest firmware. Does anyone else know of an issue like this? I don't have another Apple product to test it with, but my mum's Windows laptop works perfectly with it so it's obviously not the 370 itself.
Any help would be incredibly appreciated!