Compiler/LMT01: Will not run code in Arduino Uno

Here is the code, it both compiled & uploaded appropriately.  The 1602A LCD display showed no sign of life.
I've not used it before so I don't know if it is even functional.
When it didn't work, I tried adding the line Serial.print(pulseCount); to check to see if the interrupt routine was working.  But to no avail, I got nothing.  Now I'll be satisfied to get it get it to print in the serial print register. 


The circuit is included (Apperantly not)  Also, I have a scope - the LMT01 put out 1.6 Volts/0.6 volts at 10 Usec and there were about the right no. of pulses for temp. @ 25 C  It's feeding into a 1.1V comparator..  The circuit is the standard one by Brandon Fisher.

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#include <LiquidCrystal.h>
//Declare RS, E, D4, D5, D6, D7
LiquidCrystal lcd(3,5,6,9,10,11);

volatile int pulseCount = 0;
float temperature = 0;
int hold = 0; 

void setup() 
{
  //initialize 1602 LCD Display
  lcd.begin(16, 2);
  //Print Label for Pulse count
  lcd.setCursor(0,0);
  lcd.write("PULSES: ");
  //Print label for Temperature
  lcd.setCursor(0,1);
  lcd.write("TEMP(C): ");
  
  //Setup ACSR Register, to initlize the comparator

  /*         ACSR Bit Description
  *  
  ACD  - Clear ACD to enable Analog Comparator
  ACBG - Set ACBG to 1 to use internal 1.1V Reference
  ACO  - Clear ACIO (Will be ignored - read only)
  ACI  - Reset Analog Interrupt Flag by writing 1
  ACIE - Set ACIE to enable comparator interrupt
  ACIC - Clear ACIC, no connection to Timer/counter
  ACIS1 - Set ACIS1 to trigger interrupt on falling edge
  ACIS0 - Cleat ACIS0 to trigger interrupt on falling edge
  */
  ACSR = B01011010;    //Set according to above bit description
}

void loop() 
{
  //don't bother entering the loop again if no pulses have been counted yet. 
  if(pulseCount != 0)
  {
    //Wait for counting to be complete
    while(pulseCount != hold)
    {
      hold = pulseCount;
      delay(1);
    }
  
    //Print Pulse count to LCD
    lcd.setCursor(9,0);
    lcd.print(pulseCount);
     Serial.print(pulseCount);
     
    //Print Temperature to LCD
    temperature = 0.0625 * pulseCount - 50;
    lcd.setCursor(9,1);
    lcd.print(temperature);
   
    
    //reset pulseCount for next loop
    pulseCount = 0;
  }
  delay(2);
}


//Interrupt Service Routine, counts pulses
ISR(ANALOG_COMP_vect) 
{
  //Increment pulse count
  pulseCount += 1;
 
}