vb.net - Adding Item To Combo box collection

I'm trying to add an item  ("<Select Item"> ) to a combo box in the load_gnder sub below.

I've tried "'Me.cbogender.Items.Insert(0, "<Select One>")"  which runs but wont display - and severl other ways to add the item but I cant get it to display in the combo box.


Thanks
[code]
    Private Sub load_gender()
        Dim Dsgender As New DataSet
        Dim Sqlgender As String = ("select Description,indx from gender")
        Dsgender = get_data(Sqlgender)
        Dim dvgen As DataView = Dsgender.Tables(0).DefaultView
        Me.cbogender.DataSource = dvgen
        Me.cbogender.DisplayMember = ("Description")
        Me.cbogender.ValueMember = ("indx")
    End Sub

    Public Function get_data(ByVal Sqlin As String) As DataSet
        Dim Sqldata As String = Sqlin
        Dim conn As New SqlCeConnection(connstr)
        Dim DA1 As SqlCeDataAdapter = New SqlCeDataAdapter(Sqldata, conn)
        Dim ds4 = New DataSet
        DA1.Fill(ds4, "Table1")
        conn.Dispose()
        Return ds4
    End Function

[/code]