"Second Nature" is the After Dark module of Second Nature's "Slide Show" program. It is provided as convience to After Dark owners . - Select how fast the images change using the slider bar. - Select between the special effects using the Special Effects pop-up menu. These special effects affect the way the images are first displayed when switching between images. - Select another collection of images to display using the Collection button. 10% of all sales are donated to the Nature Conservancy. Contact Second Nature to order additional collections. By Internet: www.secondnature.com By Phone: (360) 737-4170.