Hi list ! I hope I don't ask something boring, but I didn't get it reading the manpages and searching with google... :-( I'm trying to use the ldp-docbook-dsssl package (apt-get install...). But the following resulted in many errors: openjade -t sgml -d /usr/share/sgml/docbook/stylesheet/dsssl/ldp/ldp.dsl big-howto-template.sgml OK, the manpage said to use update-catalog manually, but I don't know how. And will this solve the many problems? THX for help Florian