Hi Jim and Bob,
I play FLAC, wav....was happening on any format I was playing.
An interesting development....last night I was poking around in the DSP studio, I have the output format unchecked as suggested by Bricasti and wasn't ready to try changing that just yet.
Instead, using my web browser to access the web remote I toggled the output card, the one I use is the iec958:CARD=X20,DEV=0 [ALSA].
This seems to have got it back to normal playout without pops. I am not sure how it got into the state it was in or if it will remain in good working order but I am hopeful.
I will keep you posted.
Thanks again for your support!
Cheers,
Eric