edit menu settings

where do I find the setting to edit the main menu for this theme.

I went to appearance -> menus and created a new menu for "about" and "contact" pages - then I set the "top navigation" to the newly created menu. works great...shows up in the top right hand corner.

but for the main menu underneath the blog title it reads
Home Activity Members Groups Blogs About Contact

how do i delete the "about" and "contact" from this menu so it is not repeated twice. i thought it would be in the same area, but could not figure it out.

Thanks!