Something changed in 1.8+ and the old hook no longer works. To make the hook work again, and keep things backwards compatible, try something like this:
add_action( 'admin_menu', 'childtheme_add_footer_tag_settings_box', 11 ); /** * Add new box to the Genesis->Theme Settings page. * */ function childtheme_add_footer_tag_settings_box() { global $_genesis_theme_settings_pagehook; if(!$_genesis_theme_settings_pagehook){ $_genesis_theme_settings_pagehook = 'toplevel_page_genesis'; } add_meta_box( 'genesis-theme-settings-style', __( 'Meta Box title', 'childtheme' ), 'childtheme_theme_settings_footer_tag_box', $_genesis_theme_settings_pagehook, 'column2' ); }