motor step mercury ... easy drive 4.4 mega 2560 something no goes iiii crazy

Hello : 2 days ago with the probleM all seems rguht but motor Mercury steps no spin ¡¡¡¡
Atmega260 no problem, easy drive led on ... verify conecxions ... arduino 022 installed port ok , suply 12 v to theeasy drive.
But when i try .
This is the most basic example you can have with an Arduino, an Easy Driver, and a stepper motor. Connect the motor's four wires to the Easy Driver (note the proper coil connections), connect a power supply of 12V is to the Power In pins, and connect the Arduino's GND, pin 8 and pin 9 to the Easy Driver.

Example 1

Then load this sketch and run it on your Arduino or chipKIT:
void setup() {
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
}

void loop() {
digitalWrite(9, HIGH);
delay(1);
digitalWrite(9, LOW);
delay(1);
}

Motor stop... i try it with other easy drive.... i try all ....
i can send photos if someone want help me pls.

Thankyou