just registered on sourceforge to say, it happens to me too. updated Peace, and now the Volume Control for a Device NOT using Equalizer APO cannot be adjusted anymore. it gets set back to zero every 100ms or so. it's my 2nd USB Dac i use for Simracing. so it's not always connected and doesn't need an Equalizer. stopping Peace will stop that behaviour, and i can use the 2nd Dac normally. this didn't happen with the old Peace Version.