There's already been a thread about this (http://www.kriesi.at/support/topic/menu-problem#post-2991).
OP asked about all the extra text showing up under the page name in the horizontal menu.
I set up my menu here: Appearance>Menus.
"To fix your menus; go to the Menu tab in WP-admin, expand the menu item in question and edit the Description field. If you entered no description WP adds the text contents of your page. Remove it or add what you want."
BUT, I do NOT see a "description field" on the Edit Menu page, and I don't see a "description field" on the Page Edit page, so does anybody know where the "description field" is? I can't get rid of that tall vertical bar of text under the (page) menu item.