Thanks for the hint, Omer Akram. I tested on my Natty installation in virtualbox 4.04. gnome-settings-daemon is still running, but obviously not functioning well.
I copied the crash-file from /var/crash to my home directory,and then, in a terminal window, I ran the following commands : franco@natty:~$ ps ax |grep sett 1325 ? Ssl 0:01 /usr/lib/gnome-settings-daemon/gnome-settings-daemon 1656 pts/0 S+ 0:00 grep sett franco@natty:~$ kill -KILL 1325 franco@natty:~$ gnome-settings-daemon and this fixes the problem temporarily (for this gnome session). (crash file attached) ** Attachment added: "_usr_lib_gnome-settings-daemon_gnome-settings-daemon.1000.crash" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/733124/+attachment/1903751/+files/_usr_lib_gnome-settings-daemon_gnome-settings-daemon.1000.crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/733124 Title: Old icon theme -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs