I have a dell 8200. I no longer have the little speaker in the bottom toolbar. How do I re-install this or how do I get this back. I can play things with sound through my windows media player but nothing else has sound. Example being I could play an mp3 using windows media player but it won't work using musicmatch jukebox. All my virus definitons are up to date so I don't think that's the problem. Thanks in advance.

Check your settings via start > Control Panel > Sounds and audio devices

There is a box there to check for the taskbar icon and also some volume tests for windows sounds.