A site I'm working on uses JQuery's ADGallery and Superfish menus. The problem I'm having is to do with the way layers stack.
The page http://severnsystems-sms.co.uk/pd_about_us.htm demonstrates the problem. Hovering over the "Profile" menu shows the slide numbers and also the "next" arrow on top of the menu.
I have set the z-index for the menu items higher than the other items thoguh so I do not understand why it should display in the way it does.
Add position: relative; z-index: 120 to your parent ul - .sf-menu. It will help ;)