When using the "Filter" in the overview (http://demo.megadrupal.com/d7/md-brilliant/content/product-fullwidth) there is a problem, ONLY with Internet Explorer.
When I'm clicking on the button Filter and choose my filter -> Apply, I get my results but then I'm unable to click the button 'Filter' again to change something in my filter. So, with I.E. I can only click once on button Filter. With Chrome & Firefox I don't have this issue :-(.