problem setting up a game pad

Hello everyone, this is my very first time trying to make a game pad work with unity 3d the script I am using here is very basic one :

 #pragma strict
 
 public enum RotationAxis
 {
     MouseX = 0,
     MouseY = 1
 }
 
 var RotationAxisRotationXY = RotationAxis.MouseX | RotationAxis.MouseY;
 var SensitivityX : float = 400f;
 var MinimumX : float = -360f;
 var MaximumX : float = 360f;
 var RotationX : float = 0f;
 var OriginalRotation : Quaternion;
 var RotationY : float = 0f;
 var MinimumY : float = -25f;
 var MaximumY : float = 25f;
 var SensitivityY : float = 400f;
 var XQuaternion : Quaternion;
 var YQuaternion : Quaternion;
 
 function Start () 
 {
     
 }
 
 function Update () 
 {
     if (RotationAxisRotationXY == RotationAxis.MouseX)
     {
         RotationX += Input.GetAxis("Mouse X") * SensitivityX * Time.deltaTime;
         RotationX = ClampAngle(RotationX, MinimumX, MaximumX);
         OriginalRotation = XQuaternion = Quaternion.AngleAxis(RotationX, Vector3.up);
         transform.localRotation = OriginalRotation * XQuaternion;
     }
     if (RotationAxisRotationXY == RotationAxis.MouseY)
     {
         RotationY -= Input.GetAxis("Mouse Y") * SensitivityY * Time.deltaTime;
         RotationY = ClampAngle(RotationY, MinimumY, MaximumY);
         OriginalRotation = YQuaternion = Quaternion.AngleAxis(RotationY, Vector3.left);
         transform.localRotation = OriginalRotation * YQuaternion;
     }
 }
 
 static function ClampAngle(angle : float, min : float, max : float) : float
 {
     if (angle < -360)
         angle += 360;
     if (angle > 360)
         angle -= 360;
     return Mathf.Clamp(angle,min,max);
 }

The setting on input manager :

The screen shot of the problem,

as you can see, the calibration software shows that I am perfectly moving only on one axis, also, I checked the settings on the camera and fps control over and over again, the fps control is on rotate x and camera on rotate y, when I use the right analog stick, it rotates the camera correctly, when I move the character forward/backward everything is ok, but as soon as I move the character left and right the camera starts rotating up and down, I even tried the new sample asset's fps prefab and same error there. What am I doing wrong here?

and here is the controller script

 #pragma strict
 
 public var MoveSpeed : float = 50;
 public var JumpSpeed : float = 55;
 public var MoveDirection = Vector3.zero;
 public var Gravity : float = 45;
 public var Grounded : boolean = false;
 
 private var controller : CharacterController;
 
 function Start () 
 {
     controller = gameObject.GetComponent.<CharacterController>();
 }
 
 function Update () 
 {
     if (Grounded)
     {
         MoveDirection = new Vector3(Input.GetAxis("Horizontal"),0,Input.GetAxis("Vertical"));
         MoveDirection = transform.TransformDirection(MoveDirection);
         MoveDirection *= MoveSpeed;
     }
     if (Grounded)
     {
         if (Input.GetAxis("Jump"))
         {
             MoveDirection.y = JumpSpeed;
         }
     }
     MoveDirection.y -= Gravity * Time.deltaTime;
     var flags = controller.Move(MoveDirection * Time.deltaTime);
     Grounded = (flags & CollisionFlags.CollidedBelow) != 0;
 }