I am trying to add a drop down menu to my child theme for twenty-eleven. While looking through the code everything looks right (and the pages are children, and nested correctly in the menu widget), nothing pops down at all. I have never used the drop down menu option in WordPress before, and I'm not getting a lot of help scrolling through the forums here, so hopefully someone could help with my specific problem.
My client's site is located here: http://www.air-comfort-company.com/
For the moment, About Us is the only menu item that should have a couple of drop down links.