[horde] horde errors on first install 3.0.6 apache2 php-4.4.0

[J. Patrick Campbell]

I've searched the list archives and the FAQ and haven't found an answer
to this.
my errors:

Warning: main(Log.php): failed to open stream: No such file or directory
in /var/www/localhost/htdocs/horde/lib/Horde.php on line 3

Warning: main(): Failed opening 'Log.php' for inclusion
(include_path='/var/www/localhost/htdocs/horde/lib:.:/usr/lib/php')
in /var/www/localhost/htdocs/horde/lib/Horde.php on line 3

Warning: Cannot modify header information - headers already sent by
(output started at /var/www/localhost/htdocs/horde/lib/Horde.php:3)
in /var/www/localhost/htdocs/horde/index.php on line 51

my system:

Linux neo 2.6.14-gentoo-r2 #1 Tue Nov 15 12:24:33 EST 2005 i686 Intel(R)
Xeon(TM) CPU 2.40GHz GenuineIntel GNU/Linux

apache/php:

[ebuild   R   ] net-www/apache-2.0.54-r31  +apache2 -debug -doc -ldap
-mpm-leader -mpm-peruser -mpm-prefork -mpm-threadpool -mpm-worker
-no-suexec (-selinux) +ssl -static-modules -threads 0 kB
[ebuild   R   ] dev-php/php-4.4.0-r4  +X +berkdb +crypt +curl -debug
-doc -fdftk -firebird -flash -freetds +gd -gd-external +gdbm +gmp
-hardenedphp +imap -informix -ipv6* +java +jpeg -kerberos -ldap -mcal
-memlimit -mssql +mysql +ncurses +nls -oci8 -odbc +pam +png -postgres
+readline +snmp +spell +ssl +tiff +truetype +xml2 -yaz 0 kB

Horde:
3.0.6


Thanks!

Patrick