If you downloaded DisplayFusion 12.0 and are having issues with languages please re-download and re-install. We have repacked the release as 12.0c with the languages fixed.
Images will not show up on any monitor from web sites. I can add colors to my individual monitors and pictures for each monitor from my computer but none from online sources. When I try manually I get this error " An Error occurred while loading the full size version of this image. Empty path name is not legal"
Could you check if the "%USERPROFILE%\Pictures\DisplayFusion" and "%USERPROFILE%\Pictures\DisplayFusion\Web Images" folders exist? If they don't, could you try creating them and then try to set the wallpaper again?