rhythmbox - Configured audiosink bin0 is not working.

[unnamedplayer]

Last week rhythmbox was working fine, now I receive this message: Configured audiosink bin0 is not working.
I didn't emerge anything new as far as I remember.

Only other thing I noticed is in my xserver log a warning from rhythmbox: gsignal.c:2576
and a gnome-alsamixer warning: no idea what to do for mixer element 'automute'...

Does anyone have a clue? thanks!

[unnamedplayer]

Nevermind, fixed now, I think my virtualbox was locking the sound device.