>I reinstalled my Windows NT as Primary Domain Controler. Now I want to change the mouse driver (to use Logitech instead of MS).
>
>If I go to the ControlPanel/Mouse and choose the General tab, the Change button is disabled.
>
>I have all permissions/rights in all categories, etc.

I can change it, but only when logged in as the default Administrator account on the domain; I can't change it when logged in as a domain admin. Try making the change while logged in as Administrator.

>
>Vlad