Make sure the slide is all the way in and the seal didn't pull away from the side.
If you have the ability to get on the roof make sure there hasn't been any caulk along the cap seam that has pulled away.
PLEASE do not send questions via Profile comments or Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).