Problem reading sound of another swf

programming flash
1

[FONT=verdana, arial, helvetica][SIZE=1]Hi evrybody,[/SIZE][/FONT]
[FONT=verdana, arial, helvetica][SIZE=1]this is my first post on this forum, I hope you 'll help me.[/SIZE][/FONT]
[FONT=verdana, arial, helvetica][SIZE=1]I’m making my own flash website and I have a sound problem. I explain :[/SIZE][/FONT]
[FONT=verdana, arial, helvetica][SIZE=1]In my main swf on frame 1 I have a movieClipLoader which load a swf containing musics and sounds. So I can make my preload on frame 1[/SIZE][/FONT]
[FONT=verdana, arial, helvetica][SIZE=1]Then, on frame 2 I have my interface, etc … and I would like to use the sounds loaded in my frame 1 but it does’nt work. Here is my code :[/SIZE][/FONT]
[FONT=verdana, arial, helvetica][SIZE=1]
Frame 1

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var monClip_mcl = new MovieClipLoader();
var monEcouteurDeClip = new Object();
monEcouteurDeClip.onLoadProgress = function(cible, loadedBytes, totalBytes){ 
//blablabla .....
};
monEcouteurDeClip.onLoadComplete = function(cible){ 
//blablabla .....
};
monEcouteurDeClip.onLoadInit = function(cible){ 
sfx = new Sound (cible); 
sfx.attachSound("ambiance1"); 
sfx.start(); gotoAndStop(_currentframe+1);
};
monEcouteurDeClip.onLoadError = function(cible, codeErreur){ 
trace("Une erreur est servenue lors du chargement" + codeErreur);
};
monClip_mcl.addListener(monEcouteurDeClip);
monClip_mcl.loadClip("sfxlib.swf", soundClip);

[SIZE=1][FONT=verdana, arial, helvetica]With this code, i read the sound on frame 1
[/FONT][/SIZE]

[/INDENT][SIZE=1][FONT=verdana, arial, helvetica]To read sound on frame 2 i wrote this code :

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_root.sfx.start();

[/INDENT][FONT=verdana, arial, helvetica][SIZE=1]

but it does’nt work.

How to do that ?
Thanks a lot …

PS : sorry for my bad english[/SIZE][/FONT]