That’s odd. I was going to tell you to play with the USB modes but you’ve already tried that.
Is your music all backed up on your computer? I’m assuming (hoping) you have a back up somewhere. If yes, then you can format your Fuze and your external card. Reinstall the firmware on the Fuze. Note that formatting will delete everything on the Fuze, so you will lose all the music on the Fuze.
Once that’s done, set your USB Mode to whatever one you want to use and put the songs back on. That should work. If the problem occurs again, then I have no diea what’s wrong.
