A minor update of the 'Configuring X11' section:

- Provide a safe way to break out of the Xorg config test
- Update the instructions on enabling Ctrl+Alt+Backspace as a 'zapping'
  key combo

Discussed on:	questions@

en_US.ISO8859-1/books/handbook/x11/chapter.sgml

@@ -477,16 +477,28 @@ dbus_enable="YES"</programlisting>
       <screen>&prompt.root; <userinput>Xorg -config xorg.conf.new -retro</userinput></screen>
 
       <para>If a black and grey grid and an X mouse cursor appear,
-        the configuration was successful.  To exit the test, just press
+        the configuration was successful.  To exit the test, switch to the
+	virtual console used to start it by pressing
         <keycombo action="simul">
           <keycap>Ctrl</keycap>
           <keycap>Alt</keycap>
-          <keycap>Backspace</keycap>
-        </keycombo> simultaneously.</para>
+          <keycap>F<replaceable>n</replaceable></keycap>
+        </keycombo> (<keycap>F1</keycap> for the first virtual console)
+	and press
+	<keycombo action="simul">
+	  <keycap>Ctrl</keycap>
+	  <keycap>C</keycap>
+	</keycombo>.</para>
 
       <note>
-	<para>This key combination was enabled by default up to
-	  <application>&xorg;</application> version 7.3.  To enable it in
+	<para>In <application>&xorg;</application> versions up to 7.3,
+	  the
+	  <keycombo action="simul">
+	    <keycap>Ctrl</keycap>
+	    <keycap>Alt</keycap>
+	    <keycap>Backspace</keycap>
+	  </keycombo> key combination could be used to break out of
+	  <application>&xorg;</application>.  To enable it in
 	  version 7.4 and later, you can either type the following
 	  command from any X terminal emulator:</para>
 
@@ -511,6 +523,13 @@ dbus_enable="YES"</programlisting>
 
 	<para>You will have to reboot your machine to force
 	  <application>hald</application> to read this file.</para>
+
+	<para>The following line will also have to be added to
+	  <filename>xorg.conf.new</filename>, in the
+	  <literal>ServerLayout</literal> or <literal>ServerFlags</literal>
+	  section:</para>
+
+	<programlisting>Option	"DontZap"	"off"</programlisting>
       </note>
 
 	<para>If the mouse does not work, you will need to first