winxp lotus notes client 654 error unable to create system users

Hi all,

does anybody know a solution for this error:

"Unable to create system users"

When this error message pops up you can't do anything. You can't start
the taskmanager, there comes up a error message like "not enough system
ressources..." , or windows explorer or any other programm. But when
you start the task manager before the error occures you see the cpu
isn't that bussy and there is plenty of free memory. When you try to
save a word doc to a network drive word says the network isn't
connected. From another pc you can ping the pc with the error message.
The event protocoll doesn't show any exciting messages. When you press
the OK-Button of the error message above and close the notes client
everything works fine. Please help.

Thanks for help in advance.


Regards

Andreas