Here is a quick fix. Just uninstall the tuning-plugin for diablo and reinstall the one for tuning-plugin for chinook. It should work. Here are the steps. (1) Go to Application Manager and uninstall Canola2-tuning-plugin. (2) Go to Application Catalog and edit Maemo Extras, and put Chinook for distribution. (3) update and reinstall Canola2-tuning-plugin. Now it should work. Don't forget to change the distribution back to whatever you have before. But don't update the tuning-plugin after that until they fix the one for diablo.