Dear All, i am having the problem with z39.50server, i don know how to solve this, when ever i want to add marc and after giving the isbn i click on the z39.50 server button a window opens having names of the servers but when i click on search button i get the following error Server error! The server encountered an internal error and was unable to complete your request. Error message: Premature end of script headers: search.pl If you think this is a server error, please contact the webmaster<webmaster@dummy-opac>. Error 500 intranet 04/23/10 07:52:44 Apache/2.0.63 (Win32) i checked the log file i got the following lines [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] Premature end of script headers: search.pl, referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] something went wrong: No error at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 134., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] something went wrong: No error at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 134., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] doing the search at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 144., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] doing the search at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 144., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 0: event 1 (connect), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 0: event 6 (send apdu), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 0: event 2 (send data), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 0: event 10 (end), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] z3950.libris.kb.se at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 160., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] 0 z3950.libris.kb.seerror @attr 1=7 "/": Connect failed (10000) z3950.libris.kb.se:210, referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 1: event 1 (connect), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 1: event 6 (send apdu), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 1: event 2 (send data), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] connection 1: event 10 (end), referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] z3950.loc.gov at C:/usr/koha228/intranet/cgi-bin/koha/z3950/search.pl line 160., referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 [Fri Apr 23 07:53:07 2010] [error] [client 127.0.0.1] 1 z3950.loc.gov error @attr 1=7 "/": Connect failed (10000) z3950.loc.gov:7090, referer: http://intranet/cgi-bin/koha/z3950/search.pl?oldbiblionumber=&isbn=1 -- Kind Regards, Sajid Ali DBA/Developer College of Aeronautical Engineering