First try and see if you have the latest version of Window Media Player or Flash

You can go to the following 3rd - Party sites to download for free the updated players.

external image flashplayer.gif

external image mp11_88x31_static.gif

OR --- the best site I have found to troubleshoot video playback issues is by Dave Kaminski from Web Video University.

http://www.webvideouniversity. com/videohelp.html

Some of the trailers on this site are embedded from Teacher Tube or School Tube. If these videos do not play right away, try in a few seconds-- it could be their site is experiencing trouble or heavy traffic.