Strange Spacing Issue with Wordpress Navigation

I have looked at this in Firebug and can’t seem to see what CSS is making this act funky.

The site is http://artiscaps.com

If you hover over Products, you will see each product page with a line under it. Some are closer to the line than others. However, I have no idea why that would be. Those should be universal CSS attributes for the LIs.

Any idea?

Thanks. I will have to double check which browser I have at the office. I looked at Firefox 3.6.10 and IE8 and it looks fine, but whatever I have at work is wonky.

Hi,

The gaps are exactly 30px for each list item in Firefox 3.6. I measured them all and they were all the same. I assume we are talking about the drop down menu under our products?

What browser is giving you problems?