--- a/.emacs-my	Mon Feb 21 23:38:34 2011 +0200
+++ b/.emacs-my	Tue Feb 22 00:39:33 2011 +0200
@@ -128,7 +128,8 @@
 
 (when window-system
   ;; Prefer horizontal windows splitting.
-  (setq split-height-threshold 15)
+  (setq split-height-threshold nil)
+  (setq split-width-threshold nil)
   )
 
 (setq frame-title-format "Emacs - %b")