ERROR: "The system could not log you on. Make sure your User name and domain are correct, then type your password again. Letters in password must be in typed using correct case. Make sure that Capslock is not accidentally on."

It occurs in 5 machines inside the domain (around 30). Four Windows 2000 Professional Service Pack 4 and one Windows XP Professional.

first attempt:

1- remove the computer from the domain, join it in a workgroup (reboot)

2- put it again in the domain (reboot)

3- log normally

It should resolve the problem, but the error keep occuring time to time and not all five in same time.

Does anyone knows what alse can i do?

Are you useing roaming profiles?

Can administrator log onto the domain?

Can the same users log on else where?

Please answer these questions... Its possible the user accunts are currupt...