Click the only piece that has a large triangle, pointing down, on the bottom That is completely wrong.  De-select it!
page6-34.png page1-79.png page7-105.png page6-240.png
page7-155.png page1-24.png page7-250.png page3-42.png page6-34.png page2-158.png page6-240.png page4-197.png page1-79.png page7-105.png
page3-42.png
Click a piece that has an arrow pointing up on top