IMP 2.2.3 and php 4.0.3pl1

[John McCoy, Jr]

Specs: Solaris 7 Sparq, Horde 1.2.3, MySQL 3.22.32, IMAP c-Client 4.1c,
Apache 1.3.14

I am having a problem where phplib does not work on files that end in .php3
but works fine for .php.
If I go to http://server/test.php (a copy of test.php3) it looks fine
If I go to http://server/test.php3 I get

Warning: Failed opening '/usr/local/apache/htdocs/horde/test.php3' for
inclusion (include_path='.:/usr/local/apache/php') in Unknown on line 0

>From test.php if I click on the test phplib for Horde I get the same error.
I noticed the URL changed back to test.php3?mode=phplib-horde. If I remove
the 3 it works fine, the counter increases and everything.
I get the same results from phpinfo()

I have not edited my php.ini file, didn't look like I needed to.

Here is http.conf stuff:
# Added for Horde
  <Directory /usr/local/apache/htdocs/horde>
      Options Indexes FollowSymLinks
      AllowOverride None
      order allow,deny
      allow from all
      <IfModule mod_php3.c>
          php3_include_path '.:/usr/local/apache/php'
          php3_auto_prepend_file /usr/local/apache/php/prepend.php3
          php3_magic_quotes_gpc Off
          php3_track_vars On
      </IfModule>
      <IfModule mod_php4.c>
          php_admin_value include_path '.:/usr/local/apache/php'
          php_admin_value auto_prepend_file
/usr/local/apache/php/prepend.php3
          php_admin_flag magic_quotes_gpc Off
          php_admin_flag track_vars On
      </IfModule>
  </Directory>

<IfModule mod_dir.c>
    DirectoryIndex index.html
    DirectoryIndex index.php
    DirectoryIndex index.php3
</IfModule>

AddType application/x-httpd-php .php3
    AddType application/x-httpd-php .php
    AddType application/x-httpd-php-source .phps



Here is preprend.php3
if (empty($_PHPLIB) || !is_array($_PHPLIB)) {
# Aren't we nice? We are prepending this everywhere
# we require or include something so you can fake
# include_path  when hosted at provider that sucks.
  $_PHPLIB["libdir"] = "";
}

require($_PHPLIB["libdir"] . "db_mysql.inc");  /* Change this to match your
database. */
require($_PHPLIB["libdir"] . "ct_sql.inc");    /* Change this to match your
data storage container */
require($_PHPLIB["libdir"] . "session.inc");   /* Required for everything
below.      */

/* Additional require statements go below this line */
/* Additional require statements go before this line */

require($_PHPLIB["libdir"] . "local.inc");     /* Required, contains your
local configuration. */
require($_PHPLIB["libdir"] . "page.inc");      /* Required, contains the
page management functions. */



*************************************
John McCoy, Jr
Campus Systems Administrator
Central Systems, Mills College
510-430-3321
jmccoy@mills.edu
*************************************