Custom Menu "settings" missing !
 

I'm running with Atahualpa on a number of sites but on one of them I'm struggling to add a custom menu to the top of the pages.

When I go to Dashboard>Appearance>Menus, I have no "Menu Settings" option at the bottom whereas I do on the others. All I get is a warning that the theme doesn't handle custom menus but that can't be right as I have custom menus on my other sites and the Menu page looks different in all those !

I'm clearly doing something stupid here so would appreciate help !!!

What version of Atahualpa and WP?
have you created a custom menu yet?