My preloader stops at 50%; continues loading on the next frame

[Azuolas]

Hello,

I'm using actionscript 2, and I have a preloader that looks like this:

onClipEvent (load) {
    total = _root.getBytesTotal(); 
}
  onClipEvent (enterFrame) {
    loaded = _root.getBytesLoaded(); 
    percent = int(loaded/total*100);
    progress = ""+percent+"";
    gotoAndStop(percent);
    if (loaded == total) {
        _root.gotoAndPlay(2);
    }
} 

When my .fla had just two frames, the preloader would load to 100%. But as soon as I increase the number of frames from two to three, the preloader stops at 57%. The preloader disappears and continues to load on frame two. Does anyone know what's causing this?

Your help is most appreciated, thank you!