Output level set to zero

[mark12356]

I'm using the latest MM, driving a DAC through a USB port. Every time I play a new album ("play now"), the output level is set to zero% in windows.

This even happens when I am playing shuffled tracks from multiple albums each in its own sub-directory. Whenever the shuffle moves to a new album, the sound stops and I have to use the windows volume control to set the output up again.