Is there a trick, that I can use apt-get as usual and not get this message: Reading package lists... Done Building dependency tree... Done You might want to run `apt-get -f install' to correct these. The following packages have unmet dependencies: nvidia-glx: Depends: xlibmesa-glu but it is not installed or libglu but it is not installable or libglu1 E: Unmet dependencies. Try using -f. Thanks for help. Alexander