Index: source/wix/mysql_common_ui.xml
===================================================================
--- source/wix/mysql_common_ui.xml	(revision 140)
+++ source/wix/mysql_common_ui.xml	(working copy)
@@ -667,7 +667,8 @@
         <Publish Event="SpawnDialog" Value="CancelSetupDialog">1</Publish>
       </Control>
       <Control Id="Back" Type="PushButton" X="164" Y="243" Width="66" Height="17" Text="&lt; &amp;Back">
-        <Publish Event="NewDialog" Value="SetupTypeDialog">SetupType &lt;&gt; "Custom"</Publish>
+        <Publish Event="NewDialog" Value="SetupTypeDialog">SetupType &lt;&gt; "Custom" AND _IsMaintenance &lt;&gt; "Reinstall"</Publish>
+        <Publish Event="NewDialog" Value="MaintenanceTypeDialog">SetupType &lt;&gt; "Custom" AND _IsMaintenance = "Reinstall"</Publish>        
         <Publish Event="NewDialog" Value="CustomSetupDialog">SetupType = "Custom"</Publish>
       </Control>
       <Control Id="GroupBox1" Type="Text" X="19" Y="92" Width="330" Height="133" Disabled="yes"