Those translations are in the .desktop files; can you please ensure you have gnome-control-center 3.14.0? gnome-sound-panel.desktop has, for spanish: Comment[es]=Cambiar el volumen de entrada y salida de sonido y las alertas sonoras gnome-privacy-panel.desktop has, for spanish: Comment[es]=Proteger su informaci�n personal y controlar qu� pueden ver otros