"I successfully upgraded from LM Cinnamon 17.1 to 17.2. Unfortunately printing with hplip does not work any-more. Hplip asks me to 'Install Required Plugin', but the process fails. When installing the plug-in from an HP-authorised server the following error occures: /home/andras/.hplip/hplip-3.15.2-plugin.run file does not match its checksum. File may have been corrupted or altered"