Hiding Access Options on the Office Button

I'm building an application using A2K7 and I need to be able to hide
the navigation pane from my users. That's easy. I just hide it using
Access options and then disable special keys so they can't bring it up
using F11.

But what good does that do me if the users can just click on the
Office Button and then Access Options and reverse those settings? Not
much, but I can't seem to find a way to hide the Access Options
button. I know I can customize the ribbons and the Office Button
menus, but can I hide the Access Options button?

Thanks.