diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 66157e9230..2e8566ab80 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -18,7 +18,7 @@
  - PERFORMANCE OF THIS SOFTWARE.
 -->
 
-<!-- File: $Id: Bv9ARM-book.xml,v 1.332 2007/08/13 03:56:35 marka Exp $ -->
+<!-- File: $Id: Bv9ARM-book.xml,v 1.333 2007/09/07 07:29:22 marka Exp $ -->
 <book xmlns:xi="http://www.w3.org/2001/XInclude">
   <title>BIND 9 Administrator Reference Manual</title>
 
@@ -11024,18 +11024,18 @@ zone "example.com" {
       <sect1>
         <title>Incrementing and Changing the Serial Number</title>
 
-        <para>
-          Zone serial numbers are just numbers &mdash; they aren't date
-          related.  A lot of people set them to a number that represents a
-          date, usually of the form YYYYMMDDRR. A number of people
-          tested these numbers for Y2K compliance and set the number
-          to the year 2000 to see if it would work. They then tried to restore
-          the old serial number. This caused problems because serial
-          numbers are used to indicate that a zone has been updated. If the
-          serial number on the slave server is lower than the serial number
-          on the master, the slave server will attempt to update its copy of
-          the zone.
-        </para>
+	<para>
+	  Zone serial numbers are just numbers &mdash; they aren't
+	  date related.  A lot of people set them to a number that
+	  represents a date, usually of the form YYYYMMDDRR.
+	  Occasionally they will make a mistake and set them to a
+	  "date in the future" then try to correct them by setting
+	  them to the "current date".  This causes problems because
+	  serial numbers are used to indicate that a zone has been
+	  updated.  If the serial number on the slave server is
+	  lower than the serial number on the master, the slave
+	  server will attempt to update its copy of the zone.
+	</para>
 
         <para>
           Setting the serial number to a lower number on the master