Hi Daniele, you may have the following in your /etc/apt/sources.list: deb http://de.archive.ubuntu.com/ubuntu/ lucid main restricted deb-src http://de.archive.ubuntu.com/ubuntu/ lucid main restricted deb http://de.archive.ubuntu.com/ubuntu/ lucid-updates main restricted deb-src http://de.archive.ubuntu.com/ubuntu/ lucid-updates main restricted deb http://de.archive.ubuntu.com/ubuntu/ lucid universe deb-src http://de.archive.ubuntu.com/ubuntu/ lucid universe deb http://de.archive.ubuntu.com/ubuntu/ lucid-updates universe deb-src http://de.archive.ubuntu.com/ubuntu/ lucid-updates universe deb http://de.archive.ubuntu.com/ubuntu/ lucid multiverse deb-src http://de.archive.ubuntu.com/ubuntu/ lucid multiverse deb http://de.archive.ubuntu.com/ubuntu/ lucid-updates multiverse deb-src http://de.archive.ubuntu.com/ubuntu/ lucid-updates multiverse deb http://security.ubuntu.com/ubuntu lucid-security main restricted deb-src http://security.ubuntu.com/ubuntu lucid-security main restricted deb http://security.ubuntu.com/ubuntu lucid-security universe deb-src http://security.ubuntu.com/ubuntu lucid-security universe deb http://security.ubuntu.com/ubuntu lucid-security multiverse deb-src http://security.ubuntu.com/ubuntu lucid-security multiverse # Trinity deb http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity/debian squeeze main deb-src http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity/debian squeeze main deb http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-builddeps/debian squeeze main deb-src http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-builddeps/debian squeeze main where lucid has to be replaced by maverick. I don't know if you need them all. After editing /etc/apt/sources.list you have to run "sudo apt-get update". -- Viele Gr��e, Hartmut Hungerhilfe: http://www.thehungersite.com Ohne Zensur suchen: http://suche.amnesty-bergedorf.de/ �kologisch suchen: http://www.ecosia.de Das heutige Motto: Die gef�hrlichste Weltanschauung ist die Weltanschauung der Leute, die nie die Welt angeschaut haben.