ASp.NET app not receiving SQLDependancy notification

[MattC]

I have the following code.

I get an initial Subscribe event but then I get no notification in the app.

I call SqlDependency.S tart(DatabasePr oviderHelper.Co nnectionString) ; on the
web app application_Sta rt event

I started my web app and after receiving Starting the dependancy I ran a
query against the table in the Management Studio to update the table. I saw
that AspNet_SqlCache TablesForChange Notification's changeId for that table
was incremented. Also the Service Broker information is set up. Yet I
dont' receive any notification when the table is changed.

I've also run the following hot fix.
http://support.microsoft.com/kb/913364/EN-US/

Any thoughts??

public static void SetUserListDepe ndancy()
{
SQLServerDataba seAccessor dba = null;
IDataReader dr = null;

activeUsers.Cle ar(); //hashtable

try
{
dba =
(SQLServerDatab aseAccessor)Dat abaseProviderHe lper.GetDatabas eAccessor();
dba.SetStoredPr oc("procWebAppU sersGetActiveUs ers");

dba.Command.Not ification = null;
SqlDependency dependancy = new SqlDependency(d ba.Command);
dependancy.OnCh ange += new OnChangeEventHa ndler(OnChange) ;
dba.OpenConnect ion();
dr = dba.GetDataRead er();

while (dr.Read())
{
activeUsers.Add (dr["WindowsUserNam e"], dr["UserID"]);
}
}
catch (Exception e)
{
//do something here
}
finally
{
if (dr != null)
dr.Close();
if (dba != null)
dba.CloseConnec tion();
}

}

static void OnChange(object sender, SqlNotification EventArgs e)
{
if(e.Type == SqlNotification Type.Change)
{
SqlDependency dependency = sender as SqlDependency;

// Notices are only a one shot deal
// so remove the existing one so a new
// one can be added

dependency.OnCh ange -= OnChange;

//fill the list again
SetUserListDepe ndancy();
}
}