Your suggestion WORKED! I was able to remove enough of the NVIDIA cruft so that apt-get would install gdm3. My desktop environment is now working, thanks to your suggestion. THANK YOU! -- View this message in context: http://debian.2.n7.nabble.com/gdm-broken-after-upgrade-from-squeeze-to-wheezy-tp2970296p2970946.html Sent from the Debian User mailing list archive at Nabble.com.