 // Tested and works great with the Adafruit Ultimate GPS Shield
 // using MTK33x9 chipset
 //    ------> http://www.adafruit.com/products/
-// Pick one up today at the Adafruit electronics shop 
+// Pick one up today at the Adafruit electronics shop
 // and help support open source hardware & software! -ada
 // Fllybob added 10 sec logging option
 SoftwareSerial mySerial(8, 7);

    OCR0A = 0xAF;
    TIMSK0 |= _BV(OCIE0A);
    usingInterrupt = true;
  } 
  else {
    // do not call the interrupt function COMPA anymore
    TIMSK0 &= ~_BV(OCIE0A);


  logfile = SD.open(filename, FILE_WRITE);
  if( ! logfile ) {
    Serial.print("Couldnt create ");
    Serial.println(filename);
    error(3);
  }
  Serial.print("Writing to ");
  Serial.println(filename);

  // connect to the GPS at the desired rate
