Hoping someone has seen this before... My Macbook died, previously here I asked about freeing up the parallels license from the dead computer, this was achieved and I now have a replacement computer. On the new machine I have performed a backup time machine, to find parallels inoperable. No problem, I drag it to the trash and set about reinstalling from the original DMG file. I double click on the DMG, the wheels grind and open up a dialog box with the "Install" app, I double click on this icon, acknowledge the file was downloaded from the internet and click "open". The next dialog box gives me the message: "Parallels desktop can be installed from a disc image only, Please open the parallels desktop DMG file and try again" Which is where I started... a never ending loop.... Does anyone have any ideas on how to get passed this....? Thanks, Stuart.