When I print a label it says “File Not Found.”

Go to System Setup. Ensure the port says PMIPRINTER if you are printing to a USB Label Printer.

Be sure PMIPRINTER turns blue when you select it, then Save it.

Make sure your label printer is named PMIPRINTER in the Devices and Printers window (Printers and Faxes on XP).

To permanently fix this issue upgrade to version 7.