I've been having trouble posting pics I've downloaded from other sites lately. On this and other forums. I don't have any problem with pictures I've taken, just ones I've saved from other sites. When I'm in the manage files section, I get a "not a valid image file" notice at the top of the window. The last one I tried shows that it is a jpg file in the properties of the image, but no go. These have all been images from on line sellers sites, products I'm linking to, so I'm wondering if they are protecting their images somehow. Never had this issue before.