For some odd reason, I can no longer successfully install Koha 2.2.9 on Debian Sarge or Etch. All goes fine but when we get to the point of adding a record to the database (i.e., calling addbiblio.pl), we crash (either error code 500 or it prompts to "Save addbiblio.pl) with the following error in the log: [Fri Jan 18 16:51:16 2008] [error] [client 10.x.x.x] Can't call method "append_fields" on an undefined value at /usr/local/share/perl/5.8.8/MARC/File/SAX.pm line 95. at /usr/local/lib/perl/5.8.8/XML/LibXML/$ [Fri Jan 18 16:51:16 2008] [error] [client 10.x.x.x] at /usr/local/share/perl/5.8.8/MARC/File/XML.pm line 443, referer: http://10.x.x.x:7070/cgi-bin/koha/acqui.simple/addbiblio.pl?oldbiblionumber=0&z3950=$ [Fri Jan 18 16:51:16 2008] [error] [client 10.x.x.x] Premature end of script headers: addbiblio.pl, referer: http://10.x.x.x:7070/cgi-bin/koha/acqui.simple/addbiblio.pl?oldbiblionumber=0&z3950=1&breedingid$ Any help would be appreciated. I have had two working libraries on 2.2.9 since its release and this is the first trouble I have encountered. I am following (precisely I might add) the Kohadocs.org installation instructions for installing 2.2.7 on Debian Sarge (which has always worked in the past). It would appear to be a problem with the perl modules but I am at a loss to say what it is. Scott Leafe