samba - May 2008 - Samba 3.0.28a and win 98 no access on shares, no domain login

I've migrated from Ubuntu 6.10 to Ubuntu 8.04 (samba 3.0.28a), using the
same smb.conf and the same smbpasswd. But i can't connect to the
Ubuntu/Samba server (PDC) with win 98-clients anymore. Win2K Clients still
working with no problems, but the 98ers can't log on the domain nor can
access any shares.
The user and passwd ist the same as the win2k-clients.
When trying to connect to a share then win 98 is asking for password for ipc$.
When tryin to log on domain the it cant connect to server or wrong password
(lousy translation of the german message i get ;-)).
password encryption is enabled and as i said, the connection worked with the old
samba (3.0.20?) without problems. Is there anything changed that may affect win
98 ?

Greets Jens

Hallo, Jens,

Du (jewu34) meintest am 05.05.08:
> I've migrated from Ubuntu 6.10 to Ubuntu 8.04 (samba 3.0.28a), using
> the same smb.conf and the same smbpasswd. But i can't connect to the
> Ubuntu/Samba server (PDC) with win 98-clients anymore. Win2K Clients
> still working with no problems, but the 98ers can't log on the domain
> nor can access any shares. The user and passwd ist the same as the
> win2k-clients. When trying to connect to a share then win 98 is
> asking for password for ipc$. When tryin to log on domain the it cant
> connect to server or wrong password
Maybe you must wait some days. Sounds silly, but 2 colleagues reported  
such a behaviour. (I'd suggest waiting max. 1 week ...)

Viele Gruesse!
Helmut