In most of Norton's websites, including this one, the drop-down menus (eg Community on this page) will appear when the cursor hovers over the menu title (eg Community) but as soon as the cursor is moved down into the list of items (eg NortonForums) the menu disappears before I can click on an item. This is with Mozilla Firefox, latest version 3.6.13 in Windows7. The problem does not happen with Windows Explorer. Is there a known cause for this?