Just another alternative for you:
Code:

---

//////////////////////////////
// Object Always Facing Player
//////////////////////////////

//variable defintions
var face_pos[3];//used to set position then distance
var face_ang[3];//used to subtract pan angles for turning ent
var face_trn[3];//limits the turning of the ent

//define definitions
define face_speed, 3; // change 3 to your turning speed

action face_main {
  while(!player) { wait(1); }	
  while(1) {
    vec_set(face_pos,my.x);
    vec_sub(face_pos,player.x);
    vec_to_angle(face_ang,face_pos);
    face_trn.pan = ang(face_ang.pan - my.pan);
    if(face_trn.pan < 0) { my.pan += face_speed * time;	}
    else { my.pan -= face_speed * time;	}
    wait(1);
  }	
}


//////////////////////////////
// End
//////////////////////////////

---

-raiden