I'm confused about the way autocad treats inserted imagery. Sometimes I'll have three images (JPGs or PNGs) behind my drawing as a reference (usually satellite imagery). The image shows up in the xref window. If I choose to unload the xref, the image unloads, but the image border stays around. I can turn off image borders, but I can still select the unloaded image (or maybe I'm selecting its invisible boundary). If I make a marquee selection which overlaps the image, the image will be selected too. I can put the image on its own XREF layer then turn it off, but what am I supposed to do when I want Image 1 turned off and Image 2 turned on, but don't want to be accidentally grabbing Image 1 and moving it? Ideally, I'd like to treat images as XREFs, and keep them attached to the file but unloaded until I need them.