Problem with css for nav bar in wordpress

[javanewbie7]

I'm building a site in wordpress (for the first time) and I'm having trouble with my sub nav bar. About is the only section that has a "sub menu." Currently, after "About" there is a large amount of space between "Support." The problem is with the sub menu. Right underneath the menu where all the space is, if you place the mouse just beneath it, the submenu links show up one by one. How can I change my css to prevent this from happening? Thanks.

Link

[tladyman]

You're displaying the submenu inline, are you not? So you have an invisible list inline next to the main list, when you need it to be underneath. Try setting the list to be a block explicitly