multitap deactivate with external keyboard

[Marcus Bauer]

When connecting an external keyboard, the multitap interferes with the
keystrokes, i.e. typing two 'm' results in an 'n' instead of 'mm'.

I tried to simply kill multitap-pad but that does not change the
multitap capture.

I search all over /etc but couldn't figure out where this is
configuered. Thus my question: how can this be deactivated and
reactivated when using an external keyboard? gconf2-tool?

Thanks,
Marcus