SOLVED Accelerometer/gyro MPU6050 is freezing after random time

Question

SOLVED: I "solved" the problem by cycling my Arduino's power and I haven't had an issue since. I would still like to figure out what was going on. I still think it's something in that MPU6050 library with getMotion. But anyway, if anyone eventually has any ideas post it up. Thanks

---

Original question: I'm using an MPU6050 accelerometer/gyro that controls a servo through a Mega.

QSTN: The sensor simply stops reading after an arbitrary time, usually between 2-4 minutes. I have to reinitialize the serial monitor/MPU to get it to work again which is not good. I suspect it has something to do with getMotion but I can't put my finger on it.

Any ideas? Thanks. Code is below:

#include "Wire.h"
#include "I2Cdev.h"
#include "MPU6050.h"
#include "Servo.h"

MPU6050 mpu;

int16_t ax, ay, az;
int16_t gx, gy, gz;

Servo servo1;

int val;
int prevVal;

void setup() 
{
    Wire.begin();
    Serial.begin(38400); //38400

    Serial.println("Initializing MPU6050");
    mpu.initialize();
    Serial.println(mpu.testConnection() ? "CONNECTED" : "Connection failed");
    servo1.attach(9);
}

void loop() 
{


    mpu.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);

    val = map(ay, -17000, 17000, 0, 179);


    if (val != prevVal)
    {
        servo1.write(val);
        prevVal = val;
        Serial.println(val);
    }

    delay(75);

}