I have noticed recently that when closing the passenger door on my '96 Cobra, the door did not always shut as easily as it should. I started checking it closely and noticed that the door window glass is too close to the roof at the rear of the door. I pulled the door panel off and finally found the problem - the metal channel that is "glued" to the glass is loose - no longer "glued". Does anyone have have good tips on how to repair this?