Using Lumia 920, and I LOVE today's bing wallpaper of the camels! I'd like to save the photo for permanent wallpaper use, but have found that the leading apps (bing2wall, papercut, etc) save a lower (480x800) version of the wallpaper that just doesn't look as sharp as the automatic bing version. How do I download a high res version of the wallpaper? Thanks!