This issue only exists in Chrome. It is adding some extra space above the last link in the menu. (It looks like the first link in the menu because I have the menu floated to the right.) Here is a screenshot of what it looks like in Firefox and IE: http://ow.ly/kwE2a
Here is a screenshot of it in Chrome: http://ow.ly/kwEi6
And here is a link to the site. It is in maintenance mode right now so you can only see the menu on the page I am linking to. http://ow.ly/kwEx9
It's built on Drupal 7 if that helps.
Any help will be greatly appreciated! Thanks.