Hi In order to try out Koha, I have installed Perl, Apache and MySQL to the places required. The oldest version of MySQL I could find though was 4.1. After install of all these things, when I try to access koha at http://koha/ I get a welcome screen briefly and then I get a Server Error: 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 I have checked the logs, and in opac_error-log I have: [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Premature end of script headers: opac-main.pl [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Can't locate MARC/File/XML.pm in @INC (@INC contains: c:/usr/koha226/intranet/modules C:/usr/lib C:/usr/site/lib .) at c:/usr/koha226/intranet/modules/C4/Biblio.pm line 1047. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at c:/usr/koha226/intranet/modules/C4/Biblio.pm line 1047. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Compilation failed in require at c:/usr/koha226/intranet/modules/C4/Search.pm line 28. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at c:/usr/koha226/intranet/modules/C4/Search.pm line 28. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Compilation failed in require at c:/usr/koha226/intranet/modules/C4/Reserves2.pm line 29. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at c:/usr/koha226/intranet/modules/C4/Reserves2.pm line 29. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Compilation failed in require at c:/usr/koha226/intranet/modules/C4/Circulation/Circ2.pm line 35. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at c:/usr/koha226/intranet/modules/C4/Circulation/Circ2.pm line 35. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Compilation failed in require at c:/usr/koha226/intranet/modules/C4/Auth.pm line 30. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at c:/usr/koha226/intranet/modules/C4/Auth.pm line 30. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] Compilation failed in require at C:/usr/koha226/opac/cgi-bin/koha/opac-main.pl line 7. [Thu Nov 30 13:56:38 2006] [error] [client 127.0.0.1] BEGIN failed--compilation aborted at C:/usr/koha226/opac/cgi-bin/koha/opac-main.pl line 7. Any help to get this working would be appreciated. Otherwise I'm going to have to give up and try something else. Thanks for your help ~Brian _________________________________________________________________ Find a baby-sitter FAST with MSN Search! http://search.msn.ie/