the problem is caused by a conflicting style in the includes/CSSLayouts/CSSLayouts.css file.
change:
.cssLO > .cssLI:first-child{
overflow: hidden;
}
to:
.cssLO > .cssLI:first-child{
/*overflow: hidden;*/
}
to reenter the Menu Writer wizard, open the dreamweaver preferences panel, in the invisible elements section, make sure Scripts is selected (it is possible to override this setting in the View -> Visual aids menu by unchecking the Invisible elements option, make sure that is checked)
Now in design inspector, there should be a script icon next to the menu, click that to trigger the menu writer access point in the property inspector. There are more details on reentering the wizard in the menu writer getting started guide on the menu writer support page.
