[Samba] Impossible to get folders in windows

[Zé]

Im using mandrake10.1 wiht kde in my notebook, and i got windowsXP in other 
desktop machine.

Im able to mount linux folders in smb4k, and (this in windows machine) appears 
listed "Workgroup/Localhost/Samba Server 3.0.10", and when i click in folder 
"Samba Server 3.0.10" appears a window to enter user, but as soon i type the 
user/pass i get saying:

"\\Localhost is not accessible. You may not have permissions to use thos 
network resource. contact the network administrator to know if you have 
permissions."

No matter what i do i get always this message.

All goes ok when sharing folders in linux, but in windows ....

Anyone knows whats wrong?

greets,
Zé