Allowing domain users to install devices

Archived from groups: microsoft.public.windowsxp.security_admin (More info?)

I have a group of users that are using laptops and when they plug in
keyboards or mice they get prompted to supply administrator credentials to
install theses devices. I have tried adding the users group to "load device
drivers" GP with no luck. I really could use any input on this as to how to
allow regular users to install these devices with out admin priviliges.