I have this problem with pdfs showing wonky text on my 32 inch monitor as the only display, but when I change to duplicate the displays (laptop and monitor), it goes away on both displays. If I extend the laptop display to the monitor, it is wonky on both displays. It is fine just on the laptop as the only display. I have a graphics program that goes wild and locks up if I have the displays set up to extend, so I believe there may be some underlying issues with displays that probably won't be addressed by Evernote and other programs.