On our NTU pop-up the only thing we struggle with is setting up the dang door. Can anyone give us some helpful advice...if we set the door on the bottom weather stripping (where it's supposed to be) the metal panel won't go into place under the mounted plastic piece at the top of the door. If we set the metal "plate" in place at the door top, we can't get it set into the bottom. It's becoming quite frustrating!!