I have just install a new copy of horde 2.2.5 with php 4.3.8 and apache 2.0.50 on a solaris 9 box install with the latest patches .. after I uncomment the 'sendmail_path' => '/usr/lib/sendmail', 'sendmail_args' => '-oi' lines in the horde.php config file the login page turns white. -Ian