Stop sound not working properly

1

i created this:


mysound = new Sound();
  mysound.loadSound("webcamaudio.mp3", true);
  mysound.setVolume(80);

and i am stopping it with:


mysound.stop();

some times it works and some time it doesnt, why?
aslo it depends on the computer… on my computer it works fine but on others its not consistent
how can i make work properly?