To load any large files (around 20mb or higher) they work better when you open the picture in its own tab/window. Just r-click on the original image link and choose open in a new tab/window and they will (almost all the time) start to download.
HappyUser said: Working on 2 Terabytes images for landscape photographics makes this pic pretty little... This is relative. Only slow bandwith makes this pic large.
Or ~200MB Hubble Telescope pictures... But they are tiff files.