Image scroller problem

programming flash
1

I am doing updates to a site that has an image scroller. The scroller worked fine until i added some more images to it and now some of the images are all distored.

Here is the swf file to see exactly what im talking about: http://www.chadress.com/proof/nav_04.swf\

Here is the actionscript that is in the flash file:

frame 2 code:


// Initialise Variables
_level2.mover = scrollingobject._x;
_level2.movevalue = 0;

frame 20 code:


var mouseh:Number = tracker._x;
var mousev:Number = tracker._y;

if (mousev>415 && mousev<500) {

   _level2.movevalue = ((_level2.movevalue*9)+((mouseh-400)/-100))/10;
   alert._visible = true;
} else {
   alert._visible = false;
}

frame 21 code:


_level2.mover += movevalue;
if (_level2.mover > 6872) {
    _level2.mover = 0;
}
if (_level2.mover < 0) {
    _level2.mover = 6872;
}
scrollingobject._x = _level2.mover;
gotoAndPlay(20);

Thanks