I resolve this problem by creating another Test certificate
Hope this will help

On Sun, 23 Mar 2008 03:45:05 +0800, "Benny Ng"
wrote:

Thank you very much.

I'm also looking for this information.

Benny Ng

"Sue Mosher [MVP-Outlook]" wrote in message
...
You might start at http://msdn2.microsoft.com/en-us/library/bb386095.aspx
and, for more information, visit
http://msdn2.microsoft.com/en-us/library/bb386179.aspx