When first got car when rolling driver power window up it would go up and down, but when rolling up would need to be pulled back would not go up straight. Well now the window gets stuck or falls down. button will not roll up and down. Think it helps get it unstuck. I hear the motor when I hit the button. Not sure it sounds that great. What should I do? I know theres screws under door panel and behind cover on door handle. From there I'm clueless. I don't want to break anything. Got my radio working so now time to fix this. Advise?