--- a/.emacs-my	Tue Nov 08 11:26:56 2011 +0200
+++ b/.emacs-my	Tue Nov 08 11:32:29 2011 +0200
@@ -1254,6 +1254,16 @@
 ;; `gnus-article-mode-line-format', `gnus-server-mode-line-format',
 ;; `gnus-summary-pick-line-format'.
 
+(when window-system
+  (setq
+   gnus-sum-thread-tree-false-root ""
+   gnus-sum-thread-tree-indent " "
+   gnus-sum-thread-tree-leaf-with-other "├► "
+   gnus-sum-thread-tree-root ""
+   gnus-sum-thread-tree-single-leaf "╰► "
+   gnus-sum-thread-tree-vertical "│"
+   ))
+
 (setq gnus-user-date-format-alist '((t . "%Y-%m-%d %H:%M")))
 (setq gnus-summary-line-format "%&user-date; %B %[%-22,22f%] %s\n")
 (setq gnus-summary-mode-line-format "Gnus: %p %Z")