I am getting the following message when I try to launch Parallels after using Carbon Copy Cloner to upgrade my disk to a larger drive. Restarting has no effect and I can not locate the install DMG file to try to re-install Parallels. I believe the problem lies with file ownership/group and permissions but don't know what to set them to to get this working again. Can I just download the trial version and use my product key to reinstall it? Unable to connect to Parallels Service. Make sure that the prl_disp_service process is active and it is not blocked by Firewall. If the problem persists, contact the Parallels support team for assistance.