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.
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