Hi Pascal, I got the same problem. 2013/7/30 Pascal d'Hermilly > > Maybe you want to play with /etc/sudoers... > adding the following fixes the behaviour > Defaults env_keep +="QT_GRAPHICSSYSTEM" > > (and running : service sudo restart) Can you copy/paste the content of your /etc/sudoers? I just tried to add this line after Defaults and doesn't work for me. I also tried to comment Defaults --