I'm searching for info on why my roof always leans to the door side. I haven't measured the height side to side because I don't think there is an adjustment for that anyway. Pup is level and almost always when I set up the door I have to pull the roof over to the door. I mean that the roof may or may not be level in height but its like the lift post have slack and the door itself is what keeps everything straight. This sometimes causes problems by the plastic tabs that are on the door coming loose and the roof leaning away from the door a few inches. Does anyone else have this problem or a solution?