Wow this is odd.....
I was trying to see what was wrong with your site and if you had made someting with the CSS, that wouldn't work in FF..
I have the "Web Developer" extenstion installed so it was easy to compare your css with the default template, but they looked identical, but here comes the odd stuff.
When I am on your site, and showing ur "id & class" details with the web developer plug-in, your menu works??
This image is hidden for guests.
Please log in or register to see it.
Don't know what it means but very odd imo..