Hi, We have a JSP page with an HTML form. The form does a POST to a servlet and if validation of the posted data fails, it uses RequestDispatcher to return to the JSP page with a suitable error message (otherwise it goes to another page). We have discovered that the session id is changing if the validation fails and goes back to the JSP page - can anyone tell me why? We thought the session id would remain constant until it either times-out or is explicitly invalidated... Regards, Neil --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]