[Dan]

I've had the same problem, though maybe this can help (since it did for me);

PHP Code:

temp.dx = this.path[this.pathpos][1] - this.x;
temp.dy = this.path[this.pathpos][2] - this.y;
temp.dist = (dx ^ 2 + dy ^ 2) ^ 0.5;
if (abs(temp.dist) <= 0.5) {
  this.x += temp.dx;
  this.y += temp.dy;
  setPathPos(this.pathpos + 1);
  dropPresent(); // Chooses wether to drop or not drop a gift
  setCharAni("zone2_idle","");
}
else {
  if (temp.dist > temp.speed) {
    temp.dx *= temp.speed / temp.dist;
    temp.dy *= temp.speed / temp.dist;
    temp.dist = temp.speed;
  }
  else {
    timegap = max(0.1,temp.dist / temp.speed);
  }
  move(temp.dx,temp.dy,timegap,16);
} 


(use 'setTimer(timegap);')
(source; my Santa script for Zone)