[SOLVED] Adapting MenuBackend library to use strings in PROGMEM

PaulS:
Be nice to know what the gibberish is. If nothing prints correctly, then it seems likely that you have not selected the correct baud rate. If some stuff prints correctly, but other does not, that's a different story.

It does print out some things, mostly square boxes, and unrecognizable symbols; not the character text I was expecting.