IR sensor

Hi,

I work in a project with a IR sensor.
When I try samples sketches, the received codes display in the monitor output but in the upper box, beside the send buttom. Why?

I've write some messages in the sketch to see if it works. Never appears "Step One".

Could you help me?

Thanks

Bet

Sketch:

#include <IRremote.h> // use the library
int receiver = 11; // pin 1 of IR receiver to Arduino digital pin 11
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results;
void setup()
{
Serial.begin(9600); // for serial monitor output
irrecv.enableIRIn(); // Start the receiver
}
void loop()
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
Serial.println("Step One"); //test message
Serial.println(results.value, HEX); // display it on serial monitor in hexadecimal
irrecv.resume(); // receive the next value
} // Your loop can do other things while waiting for an IR command
}