Ancient Trees features beautiful scenes of ancient Bristlecone pine trees in spectacular locations for your desktop enjoyment. The pictures are accompanied by an acoustically based digital soundtrack, and all images are captioned. The advanced screen saver engine includes a Wallpaper feature allows you to select any image in the screen saver as your Desktop Wallpaper, i.e., the Background Image. Additional user controls include: adjusting image caption placement, size, color, font and style; delay between picture changes; showing pictures full-screen or at original size; muting the audio; using more than 50 transition effects. Images in the screen saver include: Bristlecone Pine, White Mountains California; Clinging Bristlecone Pine, Twisted Forest near Cedar Breaks NM; Court of the Ancients, White Mountains, California; Dolomite Ridge, White Mountains Bristlecone Pine Forest, California; Exposed Bristlecone Pine, Mount Washington, Great Basin NP; Giant Bristlecone Pines, Grafton Peak, Nevada; Line of the Ancients, Bristlecone Pine, Wheeler Cirque, Great Basin NP; Mount Washington Hula Bristlecone Pine, Great Basin NP; and many other beautiful Ancient Bristlecone Pines. Using the Wallpaper Feature Right-click the Screen Saver Icon on the Windows Task Bar and select "Configure Screen Saver". In the Screen Saver List select the title of your Imagedancer Screen Saver you wish to configure. Select the Wallpaper Tab and select the image you would like to use as your Desktop Background (Wallpaper). You may also select how you would like the image presented, i.e., Stretched to fill the screen, Tiled with multiple images to fill the screen, or the original size of the selected image. The Wallpaper selection may be changed at any time. To revert to the Windows Desktop go to the Display Properties dialog box and select the image from the list presented there. This feature applies to all Natural Image Screen Saver versions 2003 and later.