No, I haven't given my NIC an ip address of 127.0.0.1. I've actually got an address of 192.168.1.102. I'm using localhost (127.0.0.1) to test with. It doesn't matter if I try to connect to samba using risa (my machine's name), localhost (127.0.0.1), or 192.168.1.102, the results are the same, I won't let me in. If I do a smbclient //risa/backup, or smbclient //192.168.1.102/backup, then I get an "error connecting to 192.168.1.102 (Invalid Argument)". That is a different error message than the localhost one. Perhaps I won't be able to use locahost for this. At any rate, I still can't connect.