? system.IO.File.Exists ("C:\Program Files\ComponentOne" & _
  "Studio.NET\common\Nwind.mdb")
True

    Private Sub cmbReport_SelectedIndexChanged(ByVal sender As System.Object, _
      ByVal e As System.EventArgs) Handles cmbReport.SelectedIndexChanged
        Try
            Cursor = Cursors.WaitCursor
 
            ' load report
            status.Text = "Loading " & cmbReport.Text
            c1r.Load(m_ReportDefinitionFile, cmbReport.Text)
 
            ' render into print preview control
            status.Text = "Rendering " & cmbReport.Text
            c1r.Render()  ''''' hier wirfts ihn
            ppv.Document = c1r.Document
 
            ' give focus to print preview control
            ppv.StartPage = 0
            ppv.Focus()
 
        Finally
            Cursor = Cursors.Default
        End Try
    End Sub