Dear All I have installed koha ver. 2.2.9 with following configurations: Microsoft window 2000. Apachi 2.0.59, Mysql 4.1 & Perl 5.8.8 build 817. I Then I am trying to generate barcodes from Koha (Using Generate Barcodes Link at Koha Administration>> Barcode Generator>> Generate Barcodes). But I always find an error given below in intranet-errorlog file of Apache: [Sat Aug 23 12:33:06 2008] [error] [client 127.0.0.1] Premature end of script headers: barcodesGenerator.pl, referer: http://intranet/cgi-bin/koha/barcodes/barcodes.pl [Sat Aug 23 12:33:06 2008] [error] [client 127.0.0.1] Unable to open /tmp/979034-127.0.0.1-(From 1 to 100)-[23.8.2008]-[12:33:6].pdf for writing at C:/usr/site/lib/PDF/API2/Basic/PDF/File.pm line 511., referer: http://intranet/cgi-bin/koha/barcodes/barcodes.pl Please anyone face these error please guide me Vikas Salunkhe