Same problem, using Ubuntu 14.04 64bit: unity-control-center
(unity-control-center:4387): Gtk-CRITICAL **: gtk_radio_button_set_group: assertion '!g_slist_find (group, radio_button)' failed (unity-control-center:4387): Gtk-CRITICAL **: gtk_radio_button_set_group: assertion '!g_slist_find (group, radio_button)' failed (unity-control-center:4387): Gtk-CRITICAL **: gtk_radio_button_set_group: assertion '!g_slist_find (group, radio_button)' failed (unity-control-center:4387): unity-control-center-WARNING **: Could not load /usr/share/themes/Adwaita/index.theme: No such file or directory Segmentation fault -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1323736 Title: Segmentation Fault when Opening Appearance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1323736/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs