problemi con login

[kirikong]

quando testo il form di login che ho creato con DW mi segnala questo errore:

Oggetto risposta errore "ASP 0156 : 80004005"

Errore dell'intestazione

/nuovoreds/blog.asp, riga 59

Le intestazioni HTTP sono già state inviate al browser client. Se necessario, modificare le intestazioni HTTP prima di scrivere il contenuto della pagina.

[kirikong]

<%
' *** Validate request to log in to this site.
MM_LoginAction = Request.ServerVariables("URL")
If Request.QueryString<>"" Then MM_LoginAction = MM_LoginAction + "?" + Request.QueryString
MM_valUsername=CStr(Request.Form("user"))
If MM_valUsername <> "" Then
MM_fldUserAuthorization=""
MM_redirectLoginSuccess="AggiornaBlog.asp"
MM_redirectLoginFailed="errore.asp"
MM_flag="ADODB.Recordset"
set MM_rsUser = Server.CreateObject(MM_flag)
MM_rsUser.ActiveConnection = MM_blog_STRING
MM_rsUser.Source = "SELECT user, password"
If MM_fldUserAuthorization <> "" Then MM_rsUser.Source = MM_rsUser.Source & "," & MM_fldUserAuthorization
MM_rsUser.Source = MM_rsUser.Source & " FROM login WHERE user='" & Replace(MM_valUsername,"'","''") &"' AND password='" & Replace(Request.Form("password"),"'","''") & "'"
MM_rsUser.CursorType = 0
MM_rsUser.CursorLocation = 2
MM_rsUser.LockType = 3
MM_rsUser.Open
If Not MM_rsUser.EOF Or Not MM_rsUser.BOF Then
' username and password match - this is a valid user
Session("MM_Username") = MM_valUsername
If (MM_fldUserAuthorization <> "") Then
Session("MM_UserAuthorization") = CStr(MM_rsUser.Fields.Item(MM_fldUserAuthorization ).Value)
Else
Session("MM_UserAuthorization") = ""
End If
if CStr(Request.QueryString("accessdenied")) <> "" And false Then
MM_redirectLoginSuccess = Request.QueryString("accessdenied")
End If
MM_rsUser.Close
Response.Redirect(MM_redirectLoginSuccess)
End If
MM_rsUser.Close
Response.Redirect(MM_redirectLoginFailed)
End If
%>

[kirikong]

<form method="POST" action="<%=MM_LoginAction%>" name="blog_login_user">
<div class="titolosezione">Aggiorna il tuo sito personale</div>
<div class="nerograssetto">User:</div>
<input name="user" type="text" class="txt2" />

<div class="nerograssetto">Password:</div>
<input name="password" type="password" class="txt2" />

<input name="Submit" type="submit" class="sub2" value="Accedi" />
</form>