KBFX is an alternative to the classical K-Menu button and it's menu.
It improves the user experience by enabling the user to set a bigger (and thus more visible) start button and by finally replacing the Win95-like K-Menu.
But if you still want the old menu, because you're used to it, it is still available as an option in KBFX. We recommend, however, that you give the Spinx bar a try.