smbclient works, smbmount doesn't

Hi,

I am using samba 3.0.7 installed from RPM on a RedHat 9. I am
trying to connect to a Microsoft Active Directory server.

I have gone through the kerberos related setup, and I believe that
part of things are working. If I use the command "smbclient -k
//computer-name/share" it will let me into the directory without
asking for a password. I have to do kinit (E-Mail Removed) first,
and I have to re-do that after a certain period of time. From all
this I draw the conclusion that kerberos is working.

However, I cannot smbmount the directory:

# mount -t smbfs //computer-name/share /mnt -o krb
Warning: kerberos support will only work for samba servers
Anonymous login successful
19628: tree connect failed: ERRDOS - ERRnoaccess (Access denied.)
SMB connection failed
#
# smbmount //computer-name/share /mnt -o krb
Warning: kerberos support will only work for samba servers
Anonymous login successful
19629: tree connect failed: ERRDOS - ERRnoaccess (Access denied.)
SMB connection failed
#

I have also tried putting the username and password in the options,
and leaving off krb, putting the workgroup in there, and just about
every other thing I could think of.

Why can I use smbclient and not smbmount ? Is this a known bug ?

--Rob