1.69 update broke something for me, I think ... lcd not working (HD44780)

I have been running this little program for months just to display temperature ..

var lcd = require("HD44780").connectI2C(I2C1);
var ow = new OneWire(B13);
var temp = require("DS18B20").connect(ow);
	
function onInit() {
	I2C1.setup({scl:B6, sda:B7});
	
		
	setInterval(showData, 5000);
}


function showData() {
 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("Current temperature:");
  
 // Get the temperature
 var t = temp.getTemp();
  
 // Round it to the nearest 0.1
 t = Math.round(t*10)/10;
  
 lcd.setCursor(0,1);
 lcd.print("Temp = " + t + " C");
}


onInit();

I updated to 1.69 just now (actually not sure what the previous version was) and see this .. which means little to me :( Can anyone here tell me what might have broken and how to fix ? I've swapped the LCD for another, but the same problem ...

 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v69 Copyright 2014 G.Williams
>echo(0);
Uncaught Error: I2C device not responding
 at line 2 col 7
4,e,e])}
       ^
in function "a" called from line 1 col 8
{a(51,1);a(50,1);a(40,1);a(12,1);a(6,1);a(1,1);return{write:...
        ^
in function "f" called from line 2 col 9
4,e,e])})}
         ^
in function "connectI2C" called from line 1 col 45
var lcd = require("HD44780").connectI2C(I2C1);
                                             ^
=undefined
ERROR: Error processing interval - removing it.
Execution Interrupted during event processing.
Uncaught Error: Field or method does not already exist, and can't create it on undefined
 at line 2 col 5
 lcd.clear();
     ^
in function called from system
>