can´t open username map with samba 2.2a3

[andre.doehn at econia.com]

dear list,
ive a problem with samba 2.2a3 concering the username map file - samba
cant resolve the usernames stored in the usermap file. 

here is the syslog message: 

smbd[22258]: rpc_server/srv_netlog.c:api_net_sam_logon(177) 
smbd[22258]:   api_net_sam_logon: Failed to marshall NET_R_SAM_LOGON. 
smbd[22258]: rpc_server/srv_pipe.c:api_rpcTNP(1199) 
smbd[22258]:   api_rpcTNP: api_netlog_rpc: NET_SAMLOGON failed. 
smbd[22258]: lib/username.c:map_username(87) 
smbd[22258]:   can't open username map /usr/local/samba/lib/usermap 

here is the username map file (filepermissions: 600) with two entries 
(unix to the left and windows to the right side):

root = Administrator
user499022 = odemir

here is the smb.conf:

[global]
        security = user
        status = yes
        workgroup = NTDOM
        netbios name = cgn-pdc
        interfaces = eth0 lo
        bind interfaces only = yes
        server string = Samba %v running on %h
        wins support = yes
        time server = yes
        encrypt passwords = yes
        domain logons = yes
        domain master = yes
        local master = yes
        preferred master = yes
        logon script = scripts\logon.bat
        logon home = \\%L\homes
        logon path = \\%L\Profiles\%U
        logon drive = z:
        domain admin group = @adm
        add user script = /usr/sbin/useradd -g smbcl -c Machine -d 
/dev/null -s /bin/false %m$
        guest account = ftp
        username map = /usr/local/samba/lib/usermap
        share modes=no
        os level=65
        keepalive = 60
        name resolve order = wins bcast host
        log level = 3
        log file = /var/log/samba/log.%m
        socket options = TCP_NODELAY
        force create mode = 0640
        force directory mode = 0750
[homes]
        comment = econia home directories
        guest ok = no
        read only = no
        create mask = 0700
        directory mask = 0700
        ;oplocks = false mode = 0755
        locking = yes
[Profiles]
        comment = Windows User Profiles
        path = /share/profiles
        guest ok = no
        browseable = no
        writeable = yes
        create mask = 0644
        directory mask = 0755
        locking = no
[netlogon]
        path = /share/netlogon
        writeable = yes
        guest ok = no
[print$]
        path=/share/printers
        guest ok = yes
        browseable = yes
        read only = yes
        write list = @adm
[transfer]
        comment = share for filetransferring
        path = /share/files/transfer
        browseable = TRUE
        writeable = FALSE
        valid users = @adm, at users

any hint what iam doing wrong?

another problem is that when Win98/ME users login in the domain - the 
option logon drive = z: only work for win nt & 2k clients.
Should I have to add a line "net use z: \\cgn-pdc\homes" in the Win98 
section logon.bat?

bye
andre