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 small 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 images. The enlarged preview image corresponds to a selected thumbnail image and is a larger representation of an image file corresponding with the selected thumbnail image. 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.