BuddyPress.org

I think I’ve found the solution:

open the admin-bar.css in the bp-core/css folder

Lines 68-72

#wp-admin-bar ul li { /* all list items */

padding: 0 !important;

float: left !important;

background: url( ../images/admin-menu-arrow.gif ) 88% 53% no-repeat;

position: relative;

You just need to delete “position: relative;”.

That has solved the problem with FF3 – drop down menu disappearing.

But still having problem with IE7 menu flickering, even after https://trac.buddypress.org/ticket/530 fix