ADODB.Recordset error '800a0bb9'

Hjælp mig lige :o)

Jeg kan ikke lige gennemskue fejlen...
---------------------------------------------
ADODB.Recordset error '800a0bb9'

Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.

/nyt_admin/www/movies/nyhed.asp, line 6
---------------------------------------------
<%
If Request.QueryString("Action") = "Write_comment" Then

Set rs_user_open = Server.CreateObject("ADODB.RecordSet")

rs_user_open.open "Select * From [tblAuthor] WHERE User_code = '" & Request.Cookies("Forum")("UID") & "'" , Conn_forum

Set rs_write_comment = Server.CreateObject("ADODB.RecordSet")
rs_write_comment.open "Select * From [comments]" , Conn_sites, 1, 3

rs_write_comment.Addnew
rs_write_comment("News_id") = request("id")
rs_write_comment("Text") = request.form("comment")
rs_write_comment("Author") = rs_user_open("Author_ID")
rs_write_comment("Date") = now
rs_write_comment.Update
response.redirect("nyhed.asp?id=" & request("id") & "")
End If
%>
---------------------------------------------
Line 6:
rs_user_open.open "Select * From [tblAuthor] WHERE User_code = '" & Request.Cookies("Forum")("UID") & "'" , Conn_forum


//Arvin