Fejl i popup

Mit popup vindue laver fejl.

Link der åbner popup:
<a href="news.asp?id=<% = data.Fields ("id")%>" onclick="window.open(this.href,'nyhed','width=400,height=300,status=no');return false;"><%
Response.Write Left(data.Fields("nyhed"),50)
%></a>
----------------------------


Kode :

<%@LANGUAGE="VBScript"%>

<!--#include file="connect.asp"-->

<%
Set data = Server.CreateObject ("ADODB.Recordset")
data.Open "Select * from nyhed where id = '" & Request.querystring("id") & "'", MyConn
%>
----------------

Fejl:

Microsoft JET Database Engine error '80040e07'

Data type mismatch in criteria expression.

/news.asp, line 7
-----------

Linie 7:
data.Open "Select * from nyhed where id = '" & Request.querystring("id") & "'", MyConn
-----------------

Hvorfor ?