Please forgive me if this has been asked elsewhere... I did look. I have two iMacs both running Leopard with all the latest updates as of this posting. I have an administrator account "admin" on Mac A. On Mac B, I connect to Mac A using the Bonjour share shortcut from the Finder sidebar. When I connect I do a "Connect As..." and supply the credentials for the "admin" account. This works fine. When I click "Disconnect" it seems to work and it says "Connected as: Guest." Great. That's what I want. But, if I select a different item from the Sidebar then click on Mac A again it says "Connected as: admin" and I have admin access to all files on Mac A. This doesn't seem right. If I log out and back in this behavior persists. Only after I restart the computer am I again asked for credentials. I do not have a Keychain entry for this connection. I have tried creating a fresh, standard user account and it has this problem as well. Is this a bug? Is OSX designed like this and I'm just failing to see the logic? Something else? Thanks in advance for any help.