I.   Run installation scripts in the following order:
     install-rhel4-php-prereqs.sh
     install-rhel4-pear-prereqs.sh
     install.sh
     setup-files.sh
     setup-db.sh prefix-horde passwordgoeshere


II.  Increase the following PHP parameters in /etc/php.ini appropriately:
     memory_limit (50M)
     post_max_size (50M)
     upload_max_filesize (20M)


III. Restart Apache to pick up Module installation and parameter changes!


IV.  Go to http://mail.DOMAIN-GOES-HERE.com/ to perform the following steps:

- Navigate to Administration > Setup
- Select "Horde (horde)"
- Click Generate Horde Configuration at bottom of page.
- This will take you immediately to the "Database" tab with warnings.
- On "Database" tab, pick PostgreSQL, enter localhost as the host, xxx-horde as
  the username and database, and enter the password.  Generate.

- Navigate to Administration > Setup
- Select "Mail (imp)"
- Click Generate Mail Configuration.
- On "External Utilities and Menu" tab, enter /usr/bin/aspell and
  /usr/bin/gpg.  Generate 
- On "Compose" tab, uncheck the header and trailer options.

- Navigate to Administration > Setup
- Select "Address Book (turba)"
- Click Generate Address Book Configuration.

- Navigate to Administration > Setup
- Select "Filters (ingo)"
- Click Generate Filters Configuration.

- Navigate to Administration > Setup
- Select "Horde (horde)" again.  Doing these steps before the above
  configuration steps renders the system inaccessible.
- On "Authentication" tab, add an administrator email address (such as
  postmaster@domain.com), delegate authentication to imp.  Generate.

- Log out and log back in as the newly configured administrator

- Navigate to Administration > Setup > Horde (horde)
- On "Preference System" tab, change preferences driver to SQL Database.
  Generate.
- On "DataTree System" tab, set storage to SQL Database.  Generate.
- On "Token System" tab, set driver to SQL-based token storage.  Generate.