I'm a newb, so please bear with me.
I created a custom menu in Twenty Eleven. One of the menu items has two sub-menu items. The top item doesn't have a web page, so I left the URL field empty; the bottom two do have page links.
The menu works as expected on my desktop Mac in both Safari and Firefox - hover over the menu item and the two clickable sub-menus appear. But on my iPad (with latest iOS 5), when you tap on the top-level menu item, nothing happens.
When I tried another theme - Coraline - the menus worked correctly on the iPad - tap on the main menu item and the submenus pop up. Tap on one of the submenus, and you're taken to the proper page.
Can anyone explain why the custom pop-up menu doesn't work on the iPad in Twenty Eleven, and if there's a simple fix?
Thanks in advance,