One more question as I tweak my Twenty Ten theme. I wanted to put icons in my custom menu. I found a decent solution here: WordPress.com forum.
So I changed the css for #access #access-menu-item-100 a to have a background image.
The issue is that that menu has a drop-down sub-menu attached to it. Now the formatting for the submenu is all screwed up. Can’t seem to figure out which css ids go with which part of the custom menu.