i built and nautilus and gnome-vfs-extras from cvs HEAD. when i inovke
/opt/gnome2/bin/nautilus smb:  nautilus window comes and also  a login
prompt comes asking saying i have to enter credentials to view smb://CAT.
but i dont' see any such workgroup in my network.  i canceled the login
prompt and nautilus window displays somw work groups. Double click on a
workgroup, nautilus tries to disaply some computers present in that
workgroup. Again i was prompted to enter credentails to view a particular
machine in the list. But i was not trying to view that machine and i have
not clicked on it. Now i clicked on  computer to see smb shares, entered
credetnails in the login dailog . i could see some shared folders of that
computer. but i could not see the folder contents. when ever i click on the
folder login prompt comes up. Finally i could not see anything under that
folders with or without entering credentials.