[Plugin: All in One SEO Pack] html code shows when cursor hovers over menu bar

I’m using the graphene theme with NO custom menus on my new site, http://cliffmama.com.
When the cursor hovers over the menu items, the html code shows up. So when the cursor is over the “About” menu item, the text <strong>About</strong> appears. I was told in the support forum for the theme that this is an All-In-One-SEO pack problem.

Please advise…

Jannette

http://wordpress.org/extend/plugins/all-in-one-seo-pack/