Rear drivers side glass binding
 

I am having an issue with the rear glass tilting forward toward the front of the truck when putting them up. These are power windows on my '97 crew. The drivers side rear will bind in the weatherstrip while lifting and it'll get stuck until you push the rear edge down to make the glass horizontal again and then it goes up again to the top. Is there something that I can adjust in the door to limit this forward lean or can I lube the weatherstrip channel with silicone spray or something?