ProfileGUID after NT4.0 to W2k Migration

Hi
We’re in the process of migrating our domain users and computers from NT4.0 to W2k (Old domain to new domain, ws all w2k sp2) Problem we’re having is that after using the admt 2.0, some machines allow users to log on (these have ProfileGUID present) and others will not allow a log on (no ProfileGUID). Since all these machines are in the same location, all have identical hardware/software configurations – what are we missing? (The machines are all classroom pc’s)

Any ideas?

Phyllis M. Benjamin
Library of Congress