Re: Viewing Full Menus
It depends on how the browsers handle javascript and cookies. The default display (expanded or collapsed) is part of the menu's configuration when made, and the menu should appear as configured when the browser first encounters it. Then the user's actions are stored with a cookie (menu item opened or closed) for consistency on subsequent page views. I guess "abnormal" behavior in a browser is due to the cookie-handling going wrong, for some reason.
(Sorry, not very helpful.)
-- Gary