Go here: http://www.switches.com/ Click on "Products", it'll take you to a page with a bunch of pictures of switches. Move the mouse around on top of them.
If you're using IE, you'll get cool "hover tip" thingies poping up that follow your mouse. If you're using Mozilla, you'll get nothing. Now it seems to me that Mozilla should be able to do anything IE can do, shouldn't it? I mean really, "Micro$oft $ux d00d", right?