SAMBA client and NT server:PROBLEMS!!

[demartino vittorio grtn it]

At work I have an NT workstation connected to a powerful network of Win

NT 4 servers. As usual, while connecting, I give a userid and password.

I can see a remote net logon batch file starting on my WS (it only does

a series of net use ------)  and finally I see the network shares

S,U,V,W,Y,Z.



As a newbye, I installed redhat 6.2 on my portable PC and tried to

configure it as a client the same NT servers of with the following SAMBA
conf file.



-----------------------My smb.conf file



[global]



# Netbios Name for my PC client



netbios name = e0254228



    workgroup = TXL



    server string = DEMLNX



    security = user



    password level = 8



    username level = 8



 wins server=10.70.30.3



    encrypt passwords = yes



    smb passwd file = /etc/smbpasswd



    unix password sync = yes



 passwd program=/usr/bin/passwd %u



    null passwords = no



    os level = 0



    preferred master = no



    domain master = no



    wins support = no



    dead time = 0



    debug level = 3



    load printers = no



--------------------------  END
With this file, I'm able to browse the network with smbclient (as in windows
network neighborhood) seeing all the clients and servers connected. 
Starting an smbclient  //svrsrs1/dati myuserid%mypasswd (defined by means of
smbpasswd), which is the share with my data, I can connect to my directory ,
can use "get" and "put" successfully but when I try a "cd "command to the
directory "De Martino" (the space is important) I get the following error: 
smbclient  //svrsrs1/dati myuserid%mypasswd 
doing parameter load printers = no 
pm_process() returned Yes 
added interface ip=10.100.202.225 bcast=10.100.203.255 nmask=255.255.252.0 
Client started (version 2.0.7). 
resolve_lmhosts: Attempting lmhosts lookup for name srvscmr1<0x20> 
resolve_hosts: Attempting host lookup for name srvscmr1<0x20> 
Connecting to 10.155.201.37 at port 139 

Domain=[TXLTN_SC] OS=[Windows NT 4.0] Server=[NT LAN Manager 4.0] 
smb: \>cd PE 
dos_clean_name [\PE\] 
dos_clean_name [\PE\\] 
smb: \>cd De Martino
cd \PE\De\:ERRDOS-ERRbadpath (Directory invalid) 


And 
trying to mounting the same share by means of smbmount I get the following
error 
Session setup failed: ERRDOS 
ERRnoaccess (access denied) 


I understand that there's something wrong  with the filename definitions but
I don't know what are the right SAMBA options to see a Windows NT share
correctly. 
Any suggestion to help me? 
Ciao (Bye Bye) 
Vittorio