diff -Nur -x '*.orig' -x '*~' metacity-2.22.0/src/metacity.schemas.in metacity-2.22.0.new/src/metacity.schemas.in
--- metacity-2.22.0/src/metacity.schemas.in	2008-03-09 22:49:15.000000000 +0100
+++ metacity-2.22.0.new/src/metacity.schemas.in	2008-04-10 10:54:22.000000000 +0200
@@ -1343,7 +1343,7 @@
       <applyto>/apps/metacity/global_keybindings/switch_windows_backward</applyto>
       <owner>metacity</owner>
       <type>string</type>
-      <default>disabled</default>
+      <default>&lt;Shift&gt;&lt;Alt&gt;Tab</default>
       <locale name="C">
          <short>Move focus backwards between windows using popup display</short>
          <long>