I recently connected my Yamaha CP33 to a friend's laptop and loaded Finale just to play with some of the features. Everything worked just fine until I disconnected it. I plugged my headphones back in, and there was no sound when I tried to play. The metronome worked, the demos worked, but my actually playing it did not. Or let me clarify---as soon as I turned the power on, I had about half a second window to play while the keyboard loaded its settings. The manual says nothing. It's as if my keyboard's settings, once loaded after that half second, says do not play.