I've been googling, but turned up no helpful info. Apparently, a "pop-up" screen is supposed to come up on images not sized correctly asking what you'd like done to them as a desktop image (i.e. "tiled", "fit to screen", etc.). Mine are not doing that. I know "correctly sized" images aren't supposed to show the pop-up menu, but I have un-correctly sized images that aren't showing the menu. They might be close, but when I make them my desktop, they're slightly zoomed in and too big, cutting off parts of the image. So I'd like to choose "fit to screen" to stretch them slightly to the correct proportions and show the entire image.