Sound / No Sound

[PCInfoman]

I have put a quicktime on a site at

http://www.animalmakers.com

(see for yourself). I used Final Cut Pro to make it and saved it as a .mp4 format.

The video plays fine on all computers that I can find. However, the sound works on some and not on others.

The computers that have working sound have been macintoch and pc (windows xp and 2000). So far, the sound is not working on all the laptop computers I have tried (all are pc computers). I will try a macintosh laptop today.

Ideas?

 

[PCInfoman]

Any ideas?