private void MakeThumbnailsForTeachersGuide(object sender, EventArgs e)
{
// var dlg = new SIL.Windows.Forms.Progress.ProgressDialog();
// dlg.Overview = "Creating thumbnail files...";
// BackgroundWorker preprocessWorker = new BackgroundWorker();
// preprocessWorker.DoWork += PlaceThumbnailOrders;
// dlg.BackgroundWorker = preprocessWorker;
// dlg.CanCancel = true;
// dlg.ShowDialog();
PlaceThumbnailOrders(null,null);
}