Index: /trunk/doc/manual/en_US/user_Introduction.xml
===================================================================
--- /trunk/doc/manual/en_US/user_Introduction.xml	(revision 35007)
+++ /trunk/doc/manual/en_US/user_Introduction.xml	(revision 35008)
@@ -1284,4 +1284,7 @@
               linkend="hdimagewrites" os="" /> for details.</para>
             </note>
+
+            <para>To avoid losing the current state when restoring a snapshot,
+            you can create a new snapshot before the restore.</para>
 
             <para>By restoring an earlier snapshot and taking more snapshots