My 278 isn't working correctly either, but in a different way. I have the screen switch-off setting to kill power to the screen after 30 minutes of being paused... paused and left for a bit.

Came back, hit the top button, which normally resumes playback. VFD starts up (can see heating wires) but no display or music. Hit the play button again and it comes to life, except the status LED is on while the player is playing (I thought this wasn't possible).

Reboot fixes it, and I haven't had a chance to check if this happens every time the screen blanker kicks in yet.

A.