@Joshua Lückers: thanks for the tip. It's weird that you can have CompizConfig Settings Manager installed without Compiz. I would have never imagined that Compiz wasn't installed.
Now I have visual effects. However, the "Appearance Preferences" window and "Keep Settings" dialog are still hanging and I have to kill it to go away. At least now I got Visual Effects back. So I don't care too much if those windows hang because I'm not going to use them on a regular basis. But, again, if you want me to attach some outputs here at this report or create a new bug report using System Monitor let me know. Vítor -- Gnome Appearance Properties dialog hangs when changing desktop effects https://bugs.launchpad.net/bugs/554106 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs