Dear, I install your koha library system into my Linux server8.0. I meet the following problem. I would like you to give me some suggestions to solve it. To ensure that I have start the MySQL dataabase by ' mysql -ukoha -pkohapass Koha ' ,perl is worked well in my workstation and I have also instaled HTML::Template Then I follow your installation guide, I untar the software. I follow the step until I make the opac/cgi-bin in /var/www/cgi-bin and opac/htdocs in /var/www/html. Copy koha/opac-cgi/* into opac/cgi-bin, koha/opac-html/* into opac/htdocs, copy the koha.conf into /etc and koha/modules/C4 into /usr/lib/perl5/site_perl/5.8.0/i386_linux. When I use the browser to run the library system. http://domain.com/cgi-bin/opac/cgi-bin/opac-main.pl , it shows : Server error! The server encountered an internal error and was unable to complete your request. Error message: Premature end of script headers: opac-main.pl If you think this is a server error, please contact the webmaster Error 500 soqhome.com Thu 07 Aug 2003 02:44:02 PM HKT Apache/2.0.40 (Red Hat Linux) When I ues command in linux text mode, perl opac-main.pl , it shows : HTML::Template->new() : Cannot open included file /htdocs/default/en/opac- main.tmpl : file not found. at /usr/lib/perl5/site_perl/5.8.0/HTML/Template.pm line 1580 HTML::Template::_init_template('HTML::Template=HASH(0x8283a08)') called at /usr/lib/perl5/site_perl/5.8.0/HTML/Template.pm line 1177 HTML::Template::_init('HTML::Template=HASH(0x8283a08)') called at /usr/lib/perl5/site_perl/5.8.0/HTML/Template.pm line 1071 HTML::Template::new ('HTML::Template','filename','/htdocs/default/en/opac- main.tmpl','die_on_bad_params',0,'global_vars',1,'debug',0,...) called at /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi/C4/Output.pm line 122 C4::Output::gettemplate('opac-main.tmpl','opac') called at /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi/C4/Auth.pm line 45 C4::Auth::get_template_and_user('HASH(0x83feb3c)') called at opac- main.pl line 11 The problem I post above. It confuses me for period of time. And I have tried to find some solution in Google or Yahoo. But no one can help me. Please help me to give me suggestion to solve. If you want any other details, I will re-send to you immediately. best regards, Albert Lee albert@soqhome.com