It is possible to use a flat metal screw to hold the two halves together, if the plastic post breaks off inside the monitor housing. Use a very small bore drill bit to very gently (a hand crank drill is best, really) go through the hole all the way through to the other side, then get a phillips or torx screw that is just the right width. I did this recently for a PB150 that had a bad hinge, and it turned out looking pretty good. I did not have to use a nut and washer on the face side, as I thought I would - the screw base is exactly flush with the top surface of the PB so it looks quite decent. On the inside, you need a screw head that is just slightly larger than the recess, so that it tightly presses the two sides of the monitor housing together. Total repair cost was about .45 for the screw. Not too shabby.