In the menu.css file try changing:
ul#cssmw > li.current > a.current {
background-color: #7BA5AD;
color: #2D2B2E;
font-weight: bold;
text-decoration: none;
}
to:
ul#cssmw > li.current > a {
background-color: #7BA5AD;
color: #2D2B2E;
font-weight: bold;
text-decoration: none;
}