$ sudo apt-get install ubuntu-restricted-extras Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these: The following packages have unmet dependencies: automatix2: Depends: tango-icon-theme-common but it is not going to be installed Depends: tango-icon-theme but it is not going to be installed Depends: python2.4 but it is not going to be installed Depends: python2.4-libxml2 Depends: python-vte but it is not going to be installed Depends: gksu but it is not going to be installed Depends: python-gnome2-extras but it is not going to be installed Depends: python-gtkhtml2 but it is not going to be installed ubuntu-restricted-extras: Depends: sun-java6-plugin but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).