//user clicked the Help->About menu item
        private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
        {
            PathfinderAboutBox p = new PathfinderAboutBox();

            p.Show();
        }
 //user clicked the Help->About menu item
 private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
 {
     PathfinderAboutBox p = new PathfinderAboutBox();
     p.Show();
 }