[Monarch-users] Premature end of script headers error

[<mat...@lj...>]

Hello!

I have been trying for a couple of days now to install Monarch 2.0.2 on 
SLES9 server. Server meets all the prerequisites for Monarch, 
monarch_setup.pl executes fine, with these parameters:

What is the host name of your MySQL database server? [localhost] : 
<MYDBSERVER>
What is the name of the user that will have access to the database? [root] 
: monarch
What is the password for user monarch to access the database [] : 
<PASSWORD>
What is the name of the database you will use for your Monarch 
installation? [monarch] : monarch
Enter web server's user account [wwwrun] : wwwrun
Enter web server's user group [www] : www
Please enter your web servier's relative path to cgi-bin. Example: 
/nagios/cgi-bin [ /cgi-bin ] : /cgi/bin
What is your web server's document root [unknown] : /srv/www
Enter the full path of your cgi-bin directory [unknown] : /srv/www/cgi-bin
Enter the full installation path for Monarch 
[/usr/local/groundwork/monarch] : /usr/local/groundwork/monarch
Enter the full path to your nagios.cfg file [/usr/local/nagios/etc] : 
/usr/local/nagios/etc
Enter the full path to your nagios binary file [/usr/local/nagios/bin] : 
/usr/local/nagios/bin
I choose to modify permissions and the setup finished with warning about 
location of favicon.ico.

When I go to http://mywebserver/cgi-bin/monarch.cgi I get this:

Server error!
The server encountered an internal error and was unable to complete your 
request. 
Error message: 
Premature end of script headers: monarch_ajax.cgi 
If you think this is a server error, please contact the webmaster. 
Error 500

Can someone please give me some usefull pointers, where to start. I 
checked for some of common causes, that I found on the Internet, but to no 
avail.

Thanks in advance,
Mat