Include information about XFree86 Windows server.
diff --git a/documentation/introduction.sgml b/documentation/introduction.sgml
index aa701a3..eed5444 100644
--- a/documentation/introduction.sgml
+++ b/documentation/introduction.sgml
@@ -40,8 +40,8 @@
running Windows and the other running Linux, and if you
have some sort of X server software running on the Windows
system, you can export Linux applications onto the Windows
- system. Unfortunately, most decent win32 X servers are
- commercial products, many of which cost quite a lot.
+ system. A free X server is available at
+ <ulink url="http://xfree86.cygwin.com/">http://xfree86.cygwin.com/</ulink>.
However, this doesn't solve the problem if you only own
one computer system.
</para>
