Learning is a good thing :o)

The only other thing I can (take a stab at) is in your header_menu.css look for:

div#dropMenu li a {
display: block;
/* Hides from IE5-mac \*/
height: 1%;
/* End hide from IE5-mac */
padding: .6em 0;
text-decoration: none;
text-transform:uppercase;
color:#ffffff;
text-align:center;
border-right:1px solid #ffffff;
}

Not sure what that height: 1%; controls. Other than that you may have to either do the things I suggest with Firefox in my previous post or maybe jettrue will check in in a couple of days.

Sincerely,

0be1