Anyone else have this? Not a massive problem to me, but sounds weird!
I thought it was just my receiver, but my brother's identical setup (but with a different receiver) has the same peculiarity.
The display on the receivers shows that they are losing the connection intermittently as it loses a lock to the audio stream.
I've noticed it with 5.1 channel output to PCM, but I will try and find a file with AC3 or DTS to see if it happens with them too.
I will see if there's anything I can tweak to make the clicks go away.