A computer system and method are presented that enhance a user experience when viewing images displayed on the computer. The system includes a user interface for the computer that displays a number of thumbnail images that are representations of image files existing on the computer. The thumbnail images are arranged in alignment with one another, such as at the bottom of a viewing window. An enlarged preview image is positioned adjacent the thumbnail image. The preview image corresponds to a selected one of the thumbnail images. A control is displayed in the window that enables the user to iterate through the thumbnail images in at least one direction. As the user iterates through the thumbnail images, the enlarged preview image changes correspondingly.