samba - May 2003 - No domain available

Hi mates,

I hava a samba server as PDC and Windows2000Pro clientes and also Windows98.

In a W2K machine some users logon correctly, others receive the message that the
logon domain could not be found, others receive the message that it would not
be possible read de profile for the network path could not be find.

Any ideas???

Thanks,

Gandalf the White