>I Create a form based on a table in VFP 5.0 [Default Data Session] & SET DELETED ON , the deleted records did not show up in the form and that is normal.l but when I change the property of the form Data Session to Private Data Session and run the form at the same Enviroment the Deleted Records showed up.
>It is Very strange. IS IT a VFP5 BUG OR WHAT?

It's not a bug! All environment variables scoped to current data session, therefore you got SET DELETED OFF. You could reset environmental variables in Form.Load event for each Form with private datasession (write some App method to do this job).