Ubuntu 5.10. I have just had this dialog but without the freeze. All I was doing was rearranging folder windows, some of which were local and some on the SMB share.
-- system freezes, asks for authentication for local machine https://launchpad.net/bugs/41956 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs