only has 1.4 HDMI ports
Ahh shame - also please try plugging a phono lead in to the phono port which completely removes the onboard audio alltogether if you haven't already.
One of the first things I have tried - no luck. Thanks for your suggestion though
I had this issue with an Acer panel once - try muting the volume if it has volume controls - cleared it up for me!
60 htz bit old hat noticed a few saying they bought it a few years back enough said