You really should do a complete wipe of the display, I recommend to customers to do it prior to spring planting, in order to wipe it completely go Main Menu> System > File Manager > then touch the black bar at the top of the screen, the next window will give you the option to wipe all data, now this will wipe the display back to like new, if you want to save the run pages and page sets that you have created you can first export the run pages to a USB and then following the wipe import the pages back in, then send a new setup file