Move the mouse out of the image in order to automatically start the slide show. Click on the slide show to stop it and open up a summary of all the individual images. Click on the desired image to re-start the slide show from this particular point. You can also click on the images to the left and right of the current image in the summary to quickly move the slide show to that particular image. You can also move to another image gallery by clicking on the upper left and right hand corners of the main image.