[Milhouse]

Re sound with 1003x will look into it, thanks - although I've tested 1003x and audio over HDMI to a computer monitor (2.1 channels) is working fine with my NUC6i5SYH so it's not completely broken... also no audio problem with a Revo 3700 (Atom/ION2) into AV amp (5.1 channels).

What are your NUC6i5SYH audio setups? Can you double check that the audio output device hasn't changed etc.

Edit: Mine is a NUC6i5SYH not NUC6i5SYK