MovieClip/MovieClipLoader unloading problem

Based on Kirupa’s wonderful tutorial:
http://www.kirupa.com/developer/mx2004/thumbnails.htm

I’ve created a portfolio site for myself:
http://mobie.us

It is basically working very nicely and I am quite happy with my results. I have created ‘categories of thumbnails’ and thus I also now have buttons to swap between the categories of thumbnails. In order to get this to work I had to remove the movie clip, unload the movie clip loader, and remove the listener.

Below is my function for doing this:


function clearthumbStrip() {
	thumbnail_mc.removeMovieClip();
	for (z=0;z<countOfThumbnails;z++) {
		image_mcl.unloadClip("thumbnail_mc.t"+z);
	}
	image_mcl.removeListener(tlistener);
}

(I’ve kept all the names from Kirupa’s original sample)

Anyways, the site works well in IE6, where I’ve done most of my work. However, today I’ve noticed problems with the unloading (I assume) on Firefox and Netscape. I can’t seem to figure out what is going on. If anyone has any ideas or sees anything wrong with this code, please let me know.

By “problems”, I mean: thumbnails that overlap slightly or thumbnails that appear as phantoms behind the current ones (phantoms are from the wrong category).

Thanks in advance! I appreciate your time.

Chris