--- a/.emacs-my	Thu Sep 20 14:56:46 2012 +0300
+++ b/.emacs-my	Thu Sep 20 14:57:06 2012 +0300
@@ -1453,6 +1453,8 @@
 (gnus-add-configuration
  '(article (vertical 1.0 (group .10 point) (summary .30 point) (article 1.0))))
 
+(setq gnus-summary-display-arrow t)
+
 ;; `gnus-summary-line-format',
 ;; `gnus-server-line-format', `gnus-topic-line-format',
 ;; `gnus-group-mode-line-format', `gnus-summary-mode-line-format',