diff --git a/ChangeLog b/ChangeLog
index ca59e4496..be6b39258 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,6 +13,7 @@ $Source$
     * lang/spanish: Updated, thanks to Daniel Hinostroza (dhinostroza).
     * lang/chinese_gb: Updated, thanks to Wang (fundawang).
     * lang/swedish: Updated, thanks to Björn T. Hallberg (bth).
+    * Documentation.html: bug 782597: FAQ 1.30 about Turck MMCache
 
 2003-08-06 Marc Delisle  <lem9@users.sourceforge.net>
     * sql.php3: bug 782925: fix "Showing rows..." message when user has
diff --git a/Documentation.html b/Documentation.html
index 3ad7919e4..200636051 100755
--- a/Documentation.html
+++ b/Documentation.html
@@ -2456,7 +2456,13 @@ To create a new, empty mimetype please see libraries/transformations/template_ge
     #SetInputFilter PHP<br /></b>
     </tt>
 </p>
-
+<h4>
+    [1.30] I get the error &quot;left.php: Missing hash&quot;.
+</h4>
+<p>
+    This problem is known to happen when the server is running Turck MMCache
+    but upgrading MMCache to version 2.3.21 solves the problem. 
+</p>
 <a name="faqconfig"></a><br />
 <h3>[2. Configuration]</h3>