emacs, isearch & utf8

GNU Emacs 21.4.1 Не работает поиск. Вообще не ищет русских букв. Кусок конфига с русификацией выгляди вот так:



---
(setq default-enable-multibyte-characters t)
(set-language-environment "UTF-8")

;; C-x RET C-\ (set-input-method)
(set-input-method "cyrillic-jcuken")

(setq default-buffer-file-coding-system 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(setq selection-coding-system 'utf-8)
(setq default-buffer-file-coding-system 'utf-8)
(prefer-coding-system 'utf-8)
(setq default-process-coding-system 'utf-8)
---

В поле ввода C-s указатель раскалка менятся, русские буквы вводятся -- но поиск не работае. Пишет "Failing i-search" -- и все.

На всякий случай:

eugene@ubuntu:~$ uname -a
Linux ubuntu 2.6.15-27-686 #1 SMP PREEMPT Sat Sep 16 02:13:27 UTC 2006 i686 GNU/Linux
eugene@ubuntu:~$ locale
LANG=ru_RU.UTF-8
LANGUAGE=ru_RU:ru:en_GB:en
LC_CTYPE="ru_RU.UTF-8"
LC_NUMERIC="ru_RU.UTF-8"
LC_TIME="ru_RU.UTF-8"
LC_COLLATE="ru_RU.UTF-8"
LC_MONETARY="ru_RU.UTF-8"
LC_MESSAGES="ru_RU.UTF-8"
LC_PAPER="ru_RU.UTF-8"
LC_NAME="ru_RU.UTF-8"
LC_ADDRESS="ru_RU.UTF-8"
LC_TELEPHONE="ru_RU.UTF-8"
LC_MEASUREMENT="ru_RU.UTF-8"
LC_IDENTIFICATION="ru_RU.UTF-8"
LC_ALL=
eugene@ubuntu:~$