I'm getting this very odd message when I try to install Parallels Desktop. When opening the DMG file that includes the installer, I get this message: Parallels Desktop can be installed from a disk image only. Please open the Parallels Desktop DMG file and try again. I have re-downloaded the DMG from Parallel's website, and the same thing happens. Can anyone confirm if this happened to them? I did a clean install of Sierra, and I'm really hoping I can still use Parallels 9. Thanks! See attached below.