hi thanks for the response, yes  VinylCreator_Interactive_013_uiTweaks_000.pde requires the others to run. If you move the mouse below the two labels the menu will appear. If you click around on those buttons for a while sometimes the buttons get stuck or don't respond for a few seconds.

A small change in PFont initialization seems to have fixed it. I now declare PFont font1, font2, font3; before setup, then initialize them in setup before size(), and remove their creation from the display function of their respective classes. It's nice and rapid now.