user is not logged in after completing "Create user Wizard) ??

hi,
After user has create user wizard, i redirect them to default.aspx -  but the user is NOT logged in and this is not what I want.

code behind
    protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e)     {
    Response.Redirect("default.aspx");

wizard control
        <asp:CreateUserWizard ID="CreateUserWizard1" runat="server"             LoginCreatedUser="True" oncreateduser="CreateUserWizard1_CreatedUser"            DisableCreatedUser="False">         &nbs ...