--- zaptel-1.4.11/kernel/zconfig.h.orig	2008-07-08 07:10:28.134773466 -0430
+++ zaptel-1.4.11/kernel/zconfig.h	2008-07-08 07:10:43.616179234 -0430
@@ -52,7 +52,7 @@
  * processors and can cause system instability!
  * 
  */
-/* #define CONFIG_ZAPTEL_MMX */
+#define CONFIG_ZAPTEL_MMX
 
 /** If defined: the user must define exactly one ECHO_CAN_ var: */
 #ifndef ECHO_CAN_FROMENV