I'm a fan of Ballroomdancers.com.I usually update infomation from your website.
Now, I have a problem with playing dance video clips of your website and I need
your help to solve.
Dance Media clips have 4 kinds of format:Media Player (*.wmv),QuickTime (*.mov)
and Real Player (*.ra or *.ram). But when I clicked to these icons in your website
for playing,it would not run.(with ext *.mov, I could hear sound but couldn't see the video image)
I have tried download directly from URLs:
//www.dancevideo.net/variation/variation.mov
//www.dancevideo.net/variation/variation.wmv
but only wmv file can run.
Let show me the way to play dance video clips with all formats.
Thanh you very much.

Based on your explanation of the problem description, my guess is that you have to re-install quicktime. Have you tried that?

I've re-installed Quicktime but I still can't solve the problem.