Here is what my menu looks like in Firefox, IE, and Chrome: http://ow.ly/kwE2a

Here is what it looks like in Safari: http://ow.ly/kNa3P

I can't find the cause of the issue in my CSS.

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

Any help will be greatly appreciated! Thanks!