Index: /trunk/doc/manual/en_US/user_BasicConcepts.xml
===================================================================
--- /trunk/doc/manual/en_US/user_BasicConcepts.xml	(revision 56556)
+++ /trunk/doc/manual/en_US/user_BasicConcepts.xml	(revision 56557)
@@ -1001,6 +1001,6 @@
     controller<footnote>
         <para>Intel HD Audio support was added with VirtualBox 4.0 because
-        Windows 7 (32-bit and 64-bit versions) as well as 64-bit Windows Vista
-        do not support the Intel AC'97 controller.</para>
+        Windows 7 and later (as well as 64-bit Windows Vista) do not support
+        the Intel AC'97 controller out of the box.</para>
       </footnote> or a SoundBlaster 16 card. In any case, you can select what
     audio driver VirtualBox will use on the host.</para>