[Samba] Cannot access windows shares

[Andrade, Leonardo F. Buonsanti de (IT - Brasil)]

Hi all,
 
I'm trying to access a Windows NT server share, but I cant' do it...
The command I'm trying is :
 
mount -t smbfs //server/share /mnt/transfer/ then I get the password prompt.
If I enter or not a password I get this error message:
 3543: tree connect failed: ERRDOS - ERRnoaccess (Access denied.)
SMB connection failed
 
What should I do ?
 
Thanks for all