Jan, does http://bugzilla.gnome.org/show_bug.cgi?id=337759 match what you experienced?
** Changed in: nautilus (Ubuntu) Status: Confirmed => Needs Info -- Nautilus duplicates thumbnails for files with special characters when searching https://launchpad.net/bugs/55814 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs