[Samba] Samba PDC and Win2k Client

[L.R.Rodriguez]

I'll ask again, since its been a few days.

Quick Summary:
I am trying to join some Win2k (Service Pack 4) machines to a NT4 style 
domain with a Samba PDC. One machine successfully joins the Samba 
domain. One fails.

Current configuration:
 SambaPDC:
   - FreeBSD 4.9-RELEASE
   - Samba 2.2.8a (from binary package)
 Host1 (Silv):
   - Windows 2000 SP4 (5.00.2195)
 Host2 (Plaid):
   - Windows 2000 SP4 (5.00.2195)
 All machines are on the same network switch.
 There are no other machines on the switch.
 All connections are 100/Full Duplex..
 All machines are in the 192.168.x.y subnet
 SambaPDC is is running bind9 with a fake zone (.error) for all machines 
and forwards all other DNS queries.
 All machines use SambaPDC for DNS resolution.
 Digital Sign'n'Seal is disabled on both client machines.

 smb.conf:
   [global]
      workgroup = SAMBAPDC
      hosts allow = 192.168.
      log file = /var/log/log.%m
      log level = 2
      max log size = 50000
      security = user
      encrypt passwords = yes
      smb passwd file = /usr/local/private/smbpasswd
      domain master = yes
      preferred master = yes
      domain logons = yes

Each machine has a user account (silv$, plaid$) in the 
passwd/master.passwd files. Each machine has an account in the smbpasswd 
file, created with 'smbpasswd -a -m [machine name]'. When I add 'silv' 
to the domain and reboot, I can log in to the domain. When I add 'plaid' 
to the domain and reboot, I cannot log in to the domain. I get the 
following error: "The system cannot log you on to the domain because the 
system's computer accout in the domain is missing or the password is 
incorrect." I should stress that at no point during the process of 
adding 'plaid' to the domain did the I get an error on 'plaid'. On 
SambaPDC, in the logfile for plaid, 'log.plaid', I see these two errors:

 >[2004/02/14 17:39:11, 2] 
rpc_parse/parse_samr.c:samr_io_userinfo_ctr(6285)
 >  samr_io_userinfo_ctr: unknown switch level 0x1a
 >[2004/02/14 17:39:11, 0] rpc_server/srv_samr.c:api_samr_set_userinfo(670)
 >  api_samr_set_userinfo: Unable to unmarshall SAMR_Q_SET_USERINFO.

I am at a loss. 'Silv' and 'plaid' should not be acting differently 
here. Can anyone suggest any courses of further investigation?

Also, sometimes when I try to log in to 'Silv', it seems to have 
developed the same error as 'Plaid'. When I remove and add it back to 
the domain, however, it functions properly for while, before screwing up 
again.

Thanks,

L.R.Rodriguez