Safari has issues when dropdown menus are contained in layers and/or Div tags.

To make your pages display the same in Safari as they do in IE, FireFox, and Opera; will require changing the layout of the page where the menu is not in a floating layer and not within a Div /Div tag combination.

If you can put the menu on the base layer of the page and put it in a Table rather than Div tags, it should work on all browsers.