I have Koha v.2.2.4 on Windows XP. I extracted the file using power Archive and copied and renamed the extracted folder koha-2.2.5 to koha225 under c:\usr\koha225, then I change my koha.conf as follows: database=<database_name> hostname=localhost user=koha pass=koha intranetdir=c:\usr\koha225\intranet-cgi opacdir=c:\usr\koha225\opac-cgi kohaversion=2.2.5 opachtdocs=c:\usr\koha225\opac-html\opac-tmpl intrahtdocs=c:\usr\koha225\intranet-html\intranet-tmpl includes=c:\usr\koha225\intranet-html\intranet-tmpl\npl\en\includes But when i try to access koha, I encountered an error message: Premature end of script headers: mainpage.pl Error 500. Did I miss anything? --------------------------------- Yahoo! Photos Ring in the New Year with Photo Calendars. Add photos, events, holidays, whatever.