VFD Issue - Bad Display?

Hi,
I have a Noritake GU280X16G-7000 that I have connected to an Arduino nano using it's parallel interface.
My issue is that anything I print to the screen is displayed, then immediately erased and the screen blanks.
I'm using the library from Arduino Code Library Quick Start Guide - Noritake Co., Inc. Electronics Division
Thinking it might be a power issue (as I was powering this from my laptop port) I've tried powering the arduino from a power bank as well as a 5v mains adapter able to supply 2A with no difference. Measuring the power rail I seem to be getting 4.75v; the spec sheet says 5v, but I'm not convinced that's the issue.
I should also mention that I've also been trying to get this working with the 6-pin serial interface and just see garbage on the screen (before this also is wiped away); this is at any baud rate.
Has anyone else seen this kind of issue?
Many thanks

You linked the library, but what code did you try?

Here's the full code I've tried (in parallel mode) - This is the large text demo:

#include <GU7000_Interface.h>
#include <GU7000_Parallel.h>
#include <GU7000_Serial_Async.h>
#include <GU7000_Serial_SPI.h>
#include <GU7000_Serial_Sync.h>
#include <Noritake_VFD_GU7000.h>

// ****************************************************
// ****************************************************
// Uncomment one of the communication interfaces below.
//
//GU7000_Serial_Async interface(38400,3, 5, 7); // BAUD RATE,SIN,BUSY,RESET
//GU7000_Serial_Sync interface(3, 5, 6, 7); // SIN,BUSY,SCK,RESET
//GU7000_Serial_SPI interface(3, 5, 6, 7, 8); // SIN,BUSY,SCK,RESET,CS
//GU7000_Parallel interface('R', 8,9,10,11, 0,1,2,3,4,5,6,7); // Module Pin#3=RESET; BUSY,RESET,WR,RD,D0-D7
//GU7000_Parallel interface('B', 8,9,10,11, 0,1,2,3,4,5,6,7); // Module Pin#3=BUSY; BUSY,RESET,WR,RD,D0-D7
//GU7000_Parallel interface('N', 8,9,10,11, 0,1,2,3,4,5,6,7); // Module Pin#3=nothing; BUSY,RESET,WR,RD,D0-D7

GU7000_Parallel interface('N', 13,9,10,11, 2,3,4,5,6,7,8,12); // Module Pin#3=nothing; BUSY,RESET,WR,RD,D0-D7


//
// ****************************************************
// ****************************************************
Noritake_VFD_GU7000 vfd;

void setup() {
  _delay_ms(500);           // wait for device to power up
  vfd.begin(280, 16);       // 280x16 module
  // Enter the 4-digit model class number
  // E.g. 7040 for GU140X16G-7040A
  vfd.interface(interface); // select which interface to use
  vfd.isModelClass(7000);
  //vfd.isGeneration('B');    // Uncomment this for B generation
  vfd.GU7000_reset();       // reset module
  vfd.GU7000_init();        // initialize module

  vfd.GU7000_setFontSize(1,1,false); // 1x1 normal font
  vfd.print("1x1");
  vfd.GU7000_setFontSize(2,2,false); // 2x2 tall & wide font
  vfd.print("2x2");
  vfd.GU7000_setFontSize(3,2,false); // 3x2 wide font
  vfd.print("3x2");
}

void loop() {
}