Hi I run a Debian Sid and have seen that the version of the listings package installed is 0.21 (in /usr/share/texmf/tex/latex/listings/) I discover recently that the listings1.0 where relased in April 2002 (after a long period of inactivity) I know (and i've do it) it's possible to install manualy the 1.0 release, but can you upgrade the package ? Best regards Bouil.