--- dosemu-1.3.4/etc/dosemu.conf.orig	2007-01-28 22:19:44.000000000 +0100
+++ dosemu-1.3.4/etc/dosemu.conf	2007-01-28 22:19:58.000000000 +0100
@@ -166,7 +166,7 @@
 # preferred mapping driver, one of: auto, mapshm, mapashm, mapfile
 # Default: ""="auto"
 
-# $_mapping= ""
+$_mapping= "mapshm"
 
 ##############################################################################
 ## Debug settings