>This message appears whenever a primary key is duplicated
>It also appears instead of a current "ON ERROR" setting.
>
>(1) How can I change the text in this message to something more User-friendly?
>(2) How can I trigger a special procedure (Method) to run when this happens

If you're getting this message, it indicates that you have a problem with how you are assigning the PK. It should not be user entered, nor derived from something the user has entered. If you need more information on how to do this, see the KB article on my web site.