samba - Aug 2009 - server vs domain Auth

Hi, I'm having a strange authentication issue. 

I can authenticate just fine if I use "security = server"  and specify
any domain controller, but I get a NT_STATUS_ACCESS_DENIED if I try to 
use "security = domain" . "net lookup dc" only finds 1 DC,
which works
fine when using "server" security type.


I can join successfully with a "net join".


domain controllers Win2000 sp4
smb server: REHL5.2

samba-client-3.0.28-1.el5_2.1
samba-3.0.28-1.el5_2.1
samba-common-3.0.28-1.el5_2.1



[global]
        username map = /etc/samba/smbusers
        passwd program = /usr/bin/passwd %u
        wins server = x.x.x.x
        pam password change = yes
        printing = lprng
        dns proxy = no
        encrypt passwords = yes
        time server = yes
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        printcap name = /etc/printcap
        max log size = 0
        password server = cleatus
        obey pam restrictions = yes
        security = server
        workgroup = DOMAIN-ABC
        log file = /var/log/samba/%m.log
        netbios name = BETA
        load printers = yes


I just want to specify multiple domain controllers , but that doesn't 
work well with "security=server" .

Any help would be appreciated!

thanks



-- 
Daniel