My kitchen slide when opening or closing tilts at the top of the slide. I first noticed the tilt when opening the couch drawer pulled open and broke the latch on the drawer of the couch. I went outside to watch it close and the top makes contact with the trailer side and then straightens as it closes against the side of the unit. I asked a mechanic about it and he said that is just the way it sets up, but the opposing slide (same size) does not do this. It is going back to the dealer Monday, I just don't think it is right. Anyone seen any slide doing this before ?