Help with RTC

Using Arduino Project Guidance
6

Hi,

I also have this RTC module. I have wired it to an arduina mega adk r3. The wiring is correct, and I'm trying to use the library from the adafruit tutorials.

I have managed to set the time on the RTC, but I have some problem with it now.

Here is my code:

void loop () {
    DateTime now = RTC.now();

    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(), DEC);
    Serial.print(' ');
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();

    Serial.print(" since 1970 = ");
    Serial.print(now.unixtime());
    Serial.print("s = ");
    Serial.print(now.unixtime() / 86400L);
    Serial.println("d");
    delay(3000);
}

My problem is that the RTC seems like it has stopped ticking, here is the output from it:

2013/2/23 21:48:58
since 1970 = 1361656138s = 15759d
2013/2/23 21:48:58
since 1970 = 1361656138s = 15759d
2013/2/23 21:48:58
since 1970 = 1361656138s = 15759d
2013/2/23 21:48:58
since 1970 = 1361656138s = 15759d
2013/2/23 21:48:58
since 1970 = 1361656138s = 15759d
2013/2/23 21:48:58

Do you have any idea, what could be my problem?

Thank You!