problems with netcard under NT4 on T21

[dunk]

I'm trying to get a intel pro/100 MBLA 3400 cardbus adapter to work under NT
4 (SP6) on a thinkpad T21. i installed the proset II driver but i get the
following message when i double-click on the proset II icon in the control
panel:

Proset failed to initialize. Please restart the system or re-install the
adapter software drivers.

I've tried both and i can't get rid of the error. i've also got XP on the
same machine and the adapter works fine with it. anyone know what the
problem is? Thanks for any help.