You might also check to see if you have Adobe Flash Player installed. If not you can get it here...
http://www.adobe.com/shockwave/downl...ShockwaveFlash
Shockwave can be downloaded here...
Adobe Shockwave Download Center
Make sure you have the latest versions installed of both and make sure that you have the newest version and updates of your browser software, whether it be Internet Explorer, Mozilla Firefox, or Netscape Navigator....
If those don't work, it will take somebody with more experience fixing those problems than me....