Artifacts when Fading problem with IE and Jquery

Question

Open this site in IE8 (not sure about 7) http://www.koffeebreak.info/

See how the main div that fades in gets the black artifacts all over it?

I found this fix on another StackOverflow question: Fading issues in Internet Explorer 7 when using jQuery

But when I applied it:

jQuery("#homepagewelcome").children().fadeTo('fast', 1, function(){
            document.getElementById("#homepagewelcomeContent").style.removeAttribute("filter"); 

            });

Nothing happens. Any ideas?