I tried to test smartmenus with cmsimple – cms before i buy megamenu.
see : http://net.square7.ch/cmxh169curl/ (slow site)
and had problems with the menu.
When i klick at a link at the top then the site comes but the klicked field looses its style .
I compensated this temporarly (green) with a class for span (the are other ways ; a:visited {..} has no effect — but (please see the sitesource) it stayes at the left side of the field – and it is only a compensation of something unclear(ed).
The still worser point ist that when i klick on submenu-field the site comes and also the klicked sub-field looses its formation but the complete submenu is dead after that.
I can revive it with a klick on another field at the toplevel.