I created a horizontal Spry Menu and find that if I click on
a button to go to another page, then hit the browser's "back"
button to go to the original page with the menu, the submenu is
still dropped down and displayed. It doesn't go away even when
mousing over another button and dropping down another menu. If the
process is repeated enough, you can have several submenu drop-downs
displayed at once. This happens in Firefox (Mac & PC) and
Safari, but not in IE 7. I have installed the Spry 1.6.1 extension
and done the updater, no change. I tried creating a brand-new Spry
Menu from scratch, didn't change any CSS or anything, same problem.