Well, that's the way it is meant to be, aravot.
See the "logout" button to the left of the keys? Thats what you press to really logout the original mambo way.
Why not just delete the menu item and use the modulebutton?
Christopher's suggestion is a good idea indeed!
but instead of deleting it, why not just unpublish the menu. This way, if you want to use the menu again, you could simply publish the menu again
