Recently, my iPad 2 started having issues with the sound, it may play in YouTube but not in videos from FB, or from Pandora but not Netflix, one day ALL apps are w/o sound, another day just some of them, sometimes in the middle of listening to a song or video it will stop....I've rebooted, reset switches, freed up memory, stuck out my tongue....there's no "logic" to when it WILL or WON'T work....the only consistent aspect I notice is when it IS working is when I adjust the volume with the side switch it opens the small volume window, and when it is not working adjusting the volume up and down does not open a window.....rebooting works sometimes, sometimes not, changing the mute control sometimes works, sometimes not...it dumbfounding.