[horde] initial configuration - step 5: admin login

[Phil]

Hello.  I'm attempting to setup horder for imp, to replace squirrelmail.
I've successfully setup the DB.  In fact, all has gone well on
http://www.horde.org/horde/docs/?f=INSTALL.html#configuring-horde
up to step 5:

Completing Configuration

You can now access Horde without a password, and you will be logged in
as an administrator. You should first configure a real authentication
backend. Click on Setup in the Administration menu and configure Horde.
Start in the Authentication tab.

This does not work.  I have a login screen, but it's like a mock-up.  It
requires a password, but then takes me nowhere.  I see no tabs or menu.
I just have the user / pass boxes and the footer links for logout and
horde.  What gives?

Thanks,
Phil

(digest)