If you have downloaded Microsoft’s Windows Media Player 9 Series Beta, you may be unable to hear the webcast. If you are experiencing this problem, select the Launch External Player button. This will launch the standard Microsoft Windows Media Player and should allow you to listen to the stream. This issue is a known issue within the Beta version of the player. Please ensure you have upgraded to the most recent version of Windows Media Player.
You can download a new version of Windows Media Player below:
Microsoft Windows Media Player