I had this problem before and can't remember the fix but when I add the menu to a WP header the last item wraps to the next line and so I have to make the <ul id="mbkeymenuebul_table" class="mbkeymenuebul_menulist css_menu" style="width: 546px; height: 34px;"> width 30px wider and then you the last item sitting out on the end of the menu bar like a shag on a rock - see http://www.keychange.com.au/mortgage-broker/