samba password problem

[linux14]

hello everyone:

i have a small home network with:

machine-1:fedora
machine-2:ubuntu
machine-3:windows vista

samba is installed in the fedora and ubuntu machines.from this machine(fedora) and the ubuntu's one, i can enter the shared files of the windows machine.ok!
from this machine(fedora), i can see, but i can not enter the shared folder of the ubuntu machine:"unable to mount location:failed to mount windows shares".
from this machine(fedora), i can see my own shared file(added by samba config), but when the password is asked and i put it , never open the file.
what can be wrong?
thanks.


linux14