The problem might be due to libmurrine, where did you get that theme? Does it happen if you use an another one?
-- [apport] nautilus crashes when viewing root folder (and some other folders I do not 'own') https://launchpad.net/bugs/92962 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs