Main menu tabs

Hi.
I posted this on the Corolla support page but perhaps my question is better asked here. I am using the Footheme as a subtheme for Corolla. On the main menu two of my tabs do not show the active page with the color of page background. Each additional link that I add shows the background color of the page on the active tab - as it should. I can't figure why two of the tabs don't. My site is http://devrnc.easelinspirations.com. The tabs that don't show properly are the Calendar and the Home page.
Any help would be most appreciated.
Thank you.