Invalid NetWare account.
This can be caused by having a space in the account name. For example, (Print Operators). NetWare does not support spaces in account names. This may happen for any built-in Windows 2000 Server groups such as (Print Operators).
If you require this group to propagate to a NetWare server, click User Manager from the Administrative Tools to rename the account and then propagate it to the NetWare server.