[Dom.S]

I'm assuming you've added your own banner at the top of the page? The reason you're having that problem is that by adding a banner or changing any content above the navigation area the point at which the dropdown should appear has changed. It's easy enough to fix, just go to the custom CSS section of the edit CSS page and find the following:

/* Fix navbar pop-up menus */
#usercptools_menu, #navbar_search_menu {
	margin-top: -100px;
	margin-left: -25px;
}

Just change the value of margin-top until the menu appears at the correct height. The greater the number the higher the menu will appear - just make sure you don't omit the - before the number or the menu will be pushed down rather than up.

Hope that helps.