AS2:SharedObject, Unable to start sound back after refresh

programming flash
1

I have a toggle to mute and unmute sound in this movie. If sound is on and refresh with SharedObject sound plays again. Also I can toggle between the sound before refresh. The issue: when selecting mute then refresh, the movie plays back muted but the ability to un-mute is no longer available (at least not before another refresh).

Problem: toggle to mute then refresh of browser. Mute is fine but no ability to toggle back to sound.

Code:

var my_snd_obj:Sound = new Sound();
my_snd_obj.start(0,1);
my_snd_obj.attachSound("my_audio");
my_snd_obj.setVolume(15);
var my_so:SharedObject = SharedObject.getLocal("userPref");
if (my_so.data.stopped == undefined) {
    my_snd_obj.start(0,1);
    my_snd_obj.setVolume(15);
    stateCopy._visible = false;
    trace("stopped == undefined");
} else {
    my_snd_obj.setVolume(0);
    trace("else");
}

var volumeOn:Boolean = true;
btnSoundOff.onRelease = function():Void  {
    if (volumeOn) {
        my_so.data.stopped = 1;
        my_snd_obj.setVolume(0);
        my_so.flush();
        stateCopy._visible = true;
        trace("stopped == 1 " + my_so.data.stopped);
    } else {
        my_snd_obj.setVolume(15);
        my_so.clear();
        stateCopy._visible = false;
        trace("stopped ==  else 1" + my_so.data.stopped);
    }
    volumeOn = !volumeOn;
};

Any suggestions? Any and all help is greatly appreciated!