In order to view the previews, you need to ensure you have the latest Windows Media Player plug-in for your browser installed properly. For some browsers this plug-in is not included by default. Here are a few links that may be helpful:

• Mozilla Firefox - http://www.interoperabilitybridges.com/windows-media-player- firefox-plugin-download
• Google Chrome - http://chrome-plugins.org/windows-media-player-plugin-chrome/