samba - Dec 2008 - mounting windows homedir when using winbind

I've got samba with winbind set up, local machine is acting as domain
member. getnet returns windows users/groups, wbinfo confirms that local machine
acts is domain member, logging through ssh with pam_winbind set u works etc. On
another machine, windoes xp also being domain member, I've got homedir share
mounted antomatically as U: from //server/users. When I try to mount this share
from Linux domain member it does mount (by smbmount) or I can connect to it (by
smbclient) when providing correct credentials, however any access to it returns
"access denied". Here goes example:

DOMAIN+USER@machine:~> smbclient -U DOMAIN+USER //server/users
OS=[Windows Server 2003 3790 Service Pack 2] Server=[Windows Server 2003 5.2]
smb: \> ls
NT_STATUS_ACCESS_DENIED listing \*

One more time - this share works perfectly ok when mounted from windows. I can
also happily mount and use any other share from this server, when conencting
with windows credentials - except homedir, which is mounted on windows
automatically by windows profile script. Samba version is 3.0.24-2.23. smb.conf,
as minimal as possible, is included below. Any ideas?

Regards,

Zdenek

[global]
workgroup = DOMAIN
realm = DOMAIN.LOCAL
preferred master = no
server string = test samba server
security = ADS
encrypt passwords = yes
log level = 3
log file = /var/log/samba/%m
max log size = 50
winbind separator = +
printcap name = none
printing = none
idmap uid = 40000-50000
idmap gid = 40000-50000
template shell = /bin/bash
template homedir = /tmp
winbind enum users = yes
winbind enum groups = yes

[homes]
comment = Home Directories
valid users = %S
read only = No
browseable = No