Retina Macbook Pro HDMI - external display turns off intermittently
Hi all,
When I have an external display connected to my Macbook Pro (retina) via HDMI, every hour or so the external display will turn off (go black) for about 5 seconds and then turn back on.
Does anyone have any idea what may be causing this?
Thanks
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)