Yes, I admit it.. I download manga files online and keep up with my beloved Naruto anime manga.. They save the pages as jpeg files and you just read them off your screen if you didn't know. So anyways, I use the Windows Picture And Fax Viewer and click the left and right keys to scroll through the images.. I was wondering if there is a way to do that with the Preview program on Mac? Kinda like a slideshow thing but yeah, if my post is confusing just reply and I'll try to elaborate. Thanks everyone!