x11 ?On May 25 2021, at 12:43 pm, kmo <voxkmp@gmail.com> wrote:I'm running Xubuntu 20.04. I didn't install Gtk - it comes with the OS.I'm using the Nvidia video driver. Perhaps that has an effect.--Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html