I have mistakenly defined a new block called *main menu. *Now I get 2 main menus showing up on the site. One called *block-system-main-menu *and one called *main-menu. * When I assign the block to a region both menus appear (or disappear in the case of un-assigning). I would like to delete the block named *block-system-main-menu** *but find nowhere to do that. ?
Thanks.