I've been using Joel Birch's superfish drop down menu, and have used transparent pngs as background iamges on the drop downs. Woks brilliantly, but in Firefox MAC, the links between the first and last link disappers, but you can still hover over them. I've used swfobject, and inserted the wmode opaque mode, but still to no avail.
Here's the work in progress: http://www.studiomoso.com.au/designs/property-planning/www/_index.html Any help would be much appreciated! cheers, Ritch