Hello fellow builders! I am in the process of installing my power windows. I have followed all the instructions in the manual{this could be the problem} But I am having a hard time getting the windows to stay in the track and centered at the same time. They are centered perfect at the top but as I power them down they come out of the track. As usual both doors are a bit different as to how they are going together. Any insight to this would be appreciated. Thanks, Tom