This is my second biggest grip with the phone. This only seems to happen with the media player for me? Probably happens every other day or so. I press play and nothing happens, although if I click skip to next track or next station it will. However if you try and press play again it does not work. The only way I found to get around it was to open up the media player, start playing the music. Shut it down and then go back to the widget and press play. This seems to bring it back to life