GY-521 gyroscope/accelerometer breakout board

Hi,

I'm having troubles reading values from GY-521 to my Arduino Pro Mini.

I get the basic code from Arduino Playground Arduino Playground - MPU-6050

And this Is that i get:

AcX = 254 | AcY = 0 | AcZ = 104 | Tmp = 35.02 | GyX = 7680 | GyY = 30 | GyZ = 0
AcX = 254 | AcY = 0 | AcZ = 104 | Tmp = 35.02 | GyX = 7680 | GyY = 30 | GyZ = 0
AcX = 254 | AcY = 0 | AcZ = 104 | Tmp = 35.02 | GyX = 7680 | GyY = 30 | GyZ = 0
AcX = 254 | AcY = 0 | AcZ = 104 | Tmp = 35.02 | GyX = 7680 | GyY = 30 | GyZ = 0

Always the same values.

MPU es connected by this way:

VCC => 5v
GND => GND
SDA / SCL => A4 / A5
INT = Digital Pin 2 (I tried 3 too)
(also i tried to change A4 for A5 and vice versa)

And, if I try to use the library i2cdevlib/Arduino/MPU6050 at master · jrowberg/i2cdevlib · GitHub I always get the message that Connection Failed.

I tried to the I2CTester and it founds the IMU at 0x68 (as expected)

Any idea?

Thank you very much.