Hello Mohamed, The "Premature end of script headers" error is a "generic" error that appears in the log either right before or after the real error is explained. That other part is what we need in order to figure out what is going wrong. For example, here is an excerpt from one of my logs [Sun Mar 16 14:41:11 2003] [error] [client 127.0.0.1] Premature end of script headers: /usr/local/koha/intranet/cgi-bin/pay.pl type = loose at /usr/local/koha/intranet/modules/C4/Search.pm line 857. select dewey,subclass,publishercode from biblioitems where biblionumber=276 at /usr/local/koha/intranet/modules/C4/Search.pm line 1116. select dewey,subclass,publishercode from biblioitems where biblionumber=331 at /usr/local/koha/intranet/modules/C4/Search.pm line 1116. Tag "0 " is not a valid tag. at /usr/local/koha/intranet/modules/C4/Biblio.pm line 602 [Sun Mar 16 15:10:28 2003] [error] [client 127.0.0.1] Premature end of script headers: /usr/local/koha/intranet/cgi-bin/MARCdetail.pl We need to know the other stuf that appears in between the "Premature end of script headers" I hope this helps us make progress on your problem. Mike -- Mike Hansen <mwhansen@hmc.edu>