Ok, did you do a clean uninstall? I mean, on Windows, there are folders that need to be deleted as well as the main Vue folder, like the folder in Documents, and a folder that is called "AppData/"Roaming,/e-on software/Vue... I don't know where this folder is found on the Mac, but you need to delete it as well. And any temp file in your temp folder just to be sure. If you've already done all this, then I don't know, and you should open a support ticket at e-on.