You have clicked on the link to view the Windows Media version of the video clip.
As of summer 2005, problems have arisen with the viewing of the Windows Media version of the video clip. After that time, browsers from the Mozilla family (Netscape, Firefox) are unable to show the video clip. It appears that the problem is in the browsers themselves; we have to wait for a new release to correct the problem. At present, the Windows Media version of the video clip is only viewable with Internet Explorer.
We regret the inconvenience and look forward to a fix in the near future.