Main Navigation tab on Nelo Homepage won't update

Hey there,

I have moved a page from "Main" to a parent page "Organize." On the Nelo home page it still shows on the main navigation. On any other page of the site it appears under the correct parent page.

I have WP-Super-Cache set to update with any new post or page.

Any ideas? Is this FireFox? Theme? Cache?

http://worsttofirstcampus.org/

Thanks
MIchael