Can't save Preferences? Rated 3 out of 5 stars

I like the add on; however, the Preferences "OK" button is grayed out and therefore am not able to save any changes to the preferences. Is there something I need to do to 'enable' changes to be made in Preferences pane? TB5, QuickNote 0.6.0.10

This review is for a previous version of the add-on (0.6.0.10). 

Probably QuickNote interfere with one or more your installed extensions. Please try disable first things first extensions for find this one which interfere with QuickNote.