I think I've identified the problem in gtk+ icon theme code and created a bug report for gtk+:
http://bugzilla.gnome.org/show_bug.cgi?id=391333 I've attached a patch too. This patch is against gtk+-2.10.6. -- Changing icon theme crashes Xfce4 (Xubuntu Edgy) https://launchpad.net/bugs/77445 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs