[jQuery] fadeTo animation repeats multiple times in Firefox...why?

[alexcoleman]

I'm attempting to work with the fadeTo command (also tried other
animations like slideDown), but I keep getting repeat animations.
Sometimes it'll cycle through 2 times, other times many more times.
Here is the code I'm using:

$(document).ready(function() {

$('.featured').hover(function(){
$(this).find('.banner').fadeTo("slow",.6)
        }, function(){
                $(this).find('.banner').fadeTo("slow",1)
        });
});

You can view the page live @ www.alexcoleman.net

Any help would be greatly appreciated...
Thanks!