Find the button with the shadow!
Hint: 3rd Row, 4 Across (straight)
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button << CLICK ME!!!
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button
Button