Fatal error: Call to unsupported or undefined function display() in ./lib/mimetypes.lib on line 375

[Christopher Kalos]

I get this every time I try to read an email with a GIF attachment.
Versions:
Redhat 6.1
PHP 3.0.17 (RPM from horde.org: php-3.0.17-1.6.2horde1)
php-imap and php-ldap are also installed
Horde 1.2.3 with horde-shm 1.2.3
IMP 2.2.3

Everything was installed via RPM.

In addition, phpinfo returns auto_prepend_file as
/home/httpd/horde-phplib/prepend.php3, although httpd.conf uses the
following:

php3_include_path '.:/usr/local/apache/phplib'
php3_auto_prepend_file /usr/local/apache/phplib/prepend.php3
php3_magic_quotes_gpc Off
php3_track_vars On

Any help would be appreciated.

Christopher Kalos