Problem with loadMovie / loadSound

Hello....
I am working on a button that hopefully will both load a movie and a sound on the same command. Somehow I am having problems with this, and was hoping for some help. The .swf movie will load, however, the sound wont work. I tried first loading in it thorugh loadSound, then with attachsound ...

I would be really greatful if someone could tell me if I can load both on the same mouse event and what I might do wrong...

-ps. I did load the sound to a movie clip with :
myMusic=new Sound (MusicMC);

Here is the button command.....

on (release) {
unloadMovie (_root.screen);
}
on (release) {
//_root.screen.gotoAndStop(2);
loadMovie ("scen5.swf", _root.screen);
}

on (release) {

_root.myMusic.loadSound("/music/sample1.mp3", true);
_root.myMusic.start();
_root.myMusic.setVolume(100);
}

why do you have 3 on (release) ?