ONLY cgi OR fast-cgi works not mod-php or suPHP

I used the Perfect Server F13 - ISPConfig3 to setup this server.

I use phpinfo.php to test the operation of php and the only time it works is when the web site is set to use cgi or fast-cgi and does not work when the web site is set to mod-php or suphp.

When set to mod-php the page returned is entirely blank even if i use view page source there is not any text not even a single html tag.

When I use suPHP I get the error :
===================================
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
==================================

Any ideas anyone?

 

More Details

When I try to view phpinfo.php while the website is set to "suPHP":

In the log file I get:

[Mon Jul 12 11:19:12 2010] [error] [client 192.168.1.102] SecurityException in Application.php:511: Unknown Interpreter: php
[Mon Jul 12 11:19:12 2010] [error] [client 192.168.1.102] Premature end of script headers: phpinfo.php
[Mon Jul 12 11:19:12 2010] [error] [client 192.168.1.102] File does not exist: /var/www/error/500.html

Removing the check mark from "Own Error-Documents" gets rid of the last error.

And here are my suphp.conf files:
I have two suphp.conf files one in /etc and one in /etc/httpd/conf.d/

/etc/httpd/conf.d/suphp/conf
LoadModule suphp_module modules/mod_suphp.so

/etc/suphp.conf
[global]
;Path to logfile
logfile=/var/log/httpd/suphp.log

;Loglevel
loglevel=info

;User Apache is running as
webserver_user=apache

;Path all scripts have to be in
docroot=/var/www

;Path to chroot() to before executing script
;chroot=/mychroot

; Security options
allow_file_group_writeable=true
allow_file_others_writeable=false
allow_directory_group_writeable=true
allow_directory_others_writeable=false

;Check wheter script is within DOCUMENT_ROOT
docroot=/var/www

;Send minor error messages to browser
errors_to_browser=false

;PATH environment variable
env_path=/bin:/usr/bin

;Umask to set, specify in octal notation
umask=0022

; Minimum UID
min_uid=100

; Minimum GID
min_gid=100

[handlers]
;Handler for php-scripts
x-httpd-suphp=php:/usr/bin/php-cgi

;Handler for CGI-scripts
x-suphp-cgi=execute:!self

 

Excellent Till!

Now it's working!

You are totally awesome!

Do you twitter or have a blog?

I definitely want to be following you!