title: BackgroundAudioAgent WP7: Fast-forward/rewind audio playback
body: <p>I am currently developing a <strong>WP7 Mango</strong> using <em>Windows Phone Audio Playback Agent</em> Application which streams music (in form of MP3 and WMA files) from a web service. Everything works perfectly, but i can't seem to figure out how to fast-forward/rewind audio playback.
  when i press and hold the next/previous buttons, the music stops, and it looks like its' seeking, but as soon as i let go, it reverts back to the position it was playing at before. Any help would be great.</p>