Mp3 Player Issues

Hi,

Please I need help regarding my mp3Player, I have created a mp3 player in as3, with play/pause - stop, mute/unmute, streab bar, seek bar.

The problem is - everything works fine when I am testing the player from IDE or from the online website itself - from my pc.

But some of friends says the that player just hangs there and does nothing, while some of other friends say that the player is working as expected.

I tried placing crossdomain policy file at the root of the website but still the issue persist !

Why is it so - the player works on some pc while it just hangs on the other.
The pcs that I had tested most of them had the latest flash version though,
please could anyone solve this mystery - meanwhile I am googling a lot for the same.

I anyone had gone through the same scenario please do share the solution

Regards,
Sharat Achary