Possible Cause: The handheld client has ZENworks 6.5 Handheld Management installed, and the Handheld Management server has ZENworks 7 Handheld Management installed.
Action: Upgrade the handheld client to ZENworks 7 Handheld Management.
For more information on to how upgrade the client, see "Upgrading the Windows CE or Palm OS IP Clients" in the Novell ZENworks 7 Handheld Management Installation Guide.