FC2 Samba

I'm having some trouble with samba. If I try to login, I get the following error.

[root@archimedes /]# smbclient //archimedes/share/ -U root
Password:
Domain=[RCNET] OS=[Unix] Server=[Samba 3.0.7-2.FC2]
tree connect failed: NT_STATUS_BAD_NETWORK_NAME

However, it works when listing the directories.

[root@archimedes /]# smbclient -L //archimedes/share -U%
Domain=[RCNET] OS=[Unix] Server=[Samba 3.0.7-2.FC2]

       Sharename       Type      Comment
       ---------       ----      -------
       homes           Disk      Home Directories
       share           Disk
       IPC$            IPC       IPC Service (Samba)
       ADMIN$          IPC       IPC Service (Samba)
Domain=[RCNET] OS=[Unix] Server=[Samba 3.0.7-2.FC2]

       Server               Comment
       ---------            -------
       ARCHIMEDES           Samba

       Workgroup            Master
       ---------            -------
       RCNET                ARCHIMEDES

I tried opening the /share directory to everyone, but that didn't work.

Anyone have any suggestions?