Cookieless Forms Authentication.

Hi  Experts,
In my asp.net application using C#, I am using (Cookieless) Role Based Forms Authentication. After giving the username and password, the application is not redirecting to the page requested, it is still showing the Login.aspx page.
Here is my sample code. (Login.aspx)
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
                            1,
                            uname,
                            DateTime.Now,
              &n ...