I am using the Omnicron template with the gantry fusion menu.
I have a lovely looking menu that fits perfectly in the header b position containing 8 items including a login utilising the module child item linked to the login module.
As soon as you login to the site, be it in this menu or any other login module (such as the virtuemart login) the last item in the menu drops to a second line underneath the first item of the menu (home)
I really can't decide how this is possible as the styling of the page has not changed one iota, it is just a login procedure and that is all?