I have a 2011 Montana 3400RL which i just purchased as a used fiver from a local dealer in Sacramento, Ca. three months ago. We just noticed about a month ago that the frame around the door is bending at the top left side just above the top hinge. If we push on the door and open it to the max. (flat against the wall) position, the frame and the inside skin will separate and when we close it the inside skin will bend or kink? Does anyone have or have they had this situation occur and how did you fix it short of going to the dealer and purchasing a new door?