[Samba] joining a domain

[Mikhail Kruk]

Hi,

I'm trying to put a Linux system on a Windows domain and got stuck

We have two domains: COMPANY-SUPPORT and COMPANY-CORP. I am a user of 
COMPANY-CORP domain. I want to put my linux box into COMPANY-SUPPORT 
domain and access it as the COMPANY-CORP user.
I have Samba 2.2.1a. 
I have put the following lines into my  /etc/samba/smb.conf file (relevant 
lines only):
workgroup = company-support
password server = companysupport
username map = /etc/samba/smbusers
security = domain
allow trusted domains = yes
encrypt passwords = yes

I created the computer account in the COMPANY-SUPPORT domain.
I then ran smbpasswd -j COMPANY-SUPPORT
and it worked fine.

I then added a line to the /etc/samba/smbusers:
meshko = "COMPANY-CORP\Mikhail Kruk"
and
root = "COMPANY-SUPPORT\admin"

Now on a Windows box I browse to my Linux system and see a list of shares. 
smbstatus shows that I'm connected as anonymous.
Then I try to open one of the shares and get a login prompt. The only 
thing that works at the login prompt is if I type in meshko and a password 
-- I have previously created smbpasswd entry for that user (before joining 
the domain).
What am I doing wrong? Please help!

(I'm not subscribed so please cc:, thanks)