The curved guide on top of the mullion flap is broken and the flap does not engage when you close the door so you have to close it by hand, if you remember. I bought a new case thinking that the part was all one piece but in fact, there are 2 pieces, one held on by a screw that looks to be nylon and is the part that is actually high enough to engage the guide on the refrigerator body. I can find no reference anywhere to this tiny part on any site. It doesn't seem to appear on the parts diagrams. Anybody else know if this part is even available? It appears fairly fragile so I am surprised that it doesn't appear to be the part that breaks the most on these doors while the spring seems to break first.