Any updates on this? I'm having the same problems as above, windows playback randomly drops and returns on 1ch or both L&R. Stopping and starting the track seems to make it return or maybe a coincidence. It does it very often, every minute or so, not very usable. I'm not using a DAW. My Axe 3 did this with its new USB firmware and rolling back to the previous fixed it. My FM9 is a newer early Nov model with the latest 1.01 USB firmware and I cant find an older version to roll back to. I have the latest windows driver and I've adjusted the ASIO Buffer size up and down from its default 512 samples in Windows USB control panel. Are there settings in the FM9 to adjust for this?