The navigation on this site is really messing with me.
http://www.thebluebirddiner.com/menu_lunch.php
If the top-bar looks normal, try clicking around the top-level nav items a little while until you land on a page that displays the error. It only occurs in Firefox and only in production. And the problem, if you can't see it, is this: the styled list which comprises the navigation gets broken up in arbitrary ways and begins again on a new line. So what should be one row of icons appears as 2 or more rows of varying length and the lengths (ie, number of icons in each row) are arbitrary!

I've been poking around for weeks trying to figure this out and I can't do it.
Are there any CSS Geniuses here who can see the error of my ways?