Horde 3.0.9 cannot be configured

After I install the Horde 3.0.9 in the Install Script section, I use the link to configure Horde. However, I get this in my error_log:

[client #.#.#.#] PHP Notice: Undefined index: horde in
/home/awebsite/public_html/horde/lib/ Horde/Registry.php on line 146

Any ideas on what to check? This is FC4 with PHP4 from Virtualmin Pro's rpms.

# rpm -qa | grep "vm"
clamd-0.88-1.vm
perl-Net-SSLeay-1.26-2.vm
php4-pear-4.3.11-2.6vm
php4-ncurses-4.3.11-2.6vm
php4-imap-4.3.11-2.6vm
php4-mbstring-4.3.11-2.6vm
lvm2-2.01.08-2.1
mod_fastcgi-2.4.2-1.vm
clamav-0.88-1.vm
httpd-2.0.54-11.1.vm
mod_ssl-2.0.54-11.1.vm
php4-4.3.11-2.6vm
php4-domxml-4.3.11-2.6vm
php4-pgsql-4.3.11-2.6vm
php4-mysql-4.3.11-2.6vm
php4-odbc-4.3.11-2.6vm
php4-xmlrpc-4.3.11-2.6vm
clamav-db-0.88-1.vm
httpd-manual-2.0.54-11.1.vm
php4-devel-4.3.11-2.6vm
php4-ldap-4.3.11-2.6vm
php4-gd-4.3.11-2.6vm

Status: 
Closed (fixed)