setVolume() Issues

I’m having an issue with the setVolume() function.
My problem is that when I set volume of a specified sound object the entire flash file is affected, meaning that all sounds are affected (The ones created by AS). Not just the single sound I specified.

Here’s the line, which “mutes” the sound:

 music_main.setVolume(0);

The ‘music_main’ object is created through these lines:


 
   music_main = new Sound();
   music_main.attachSound("MAIN_THEME");
 

Now my problem is what I stated above. All Sound Objects created are affected by the setVolume() function. I only want to change the ‘music_main’ object.

Any ideas?

Thanks in Advance…