This has happened off and on before U16 and was easily fixed by referring to a saved version of the user pref files and making the change to "SoundFeatures=none" to the correct one showing my playback device. Now, post U16, my user pref file is being overwritten everytime. Even if I set it to "read only" it will not load my sound features preference. Options always shows sound playback device as "none". Has anyone else had this problem and resolved it?