The option to adjust the volume in any way has been lost within certain apps. For example, if I try to watch a video someone has posted in Facebook, it'll open the video up fine, but the volume slider will simply disappear, leaving only the option to play, pause, forward, etc. The same thing happens in the Flixster app when I try to watch a movie trailer. The thing is, when I plug in my headphones, the volume slider reappears. As soon as I take them out, it disappears again. Does any one know why it's doing this, and can anybody post a fix? Thanks guys!