just notified this, my 8 months old UMBP , anyone here have this happen at yours mbp ? Full Screen http://yit.me/57fk7n -- Hi, Three months after I posted my problem here. Apple replaced the upper case with New one, because of another problem which is My trackpad not recognized any click, but tap works. A 10 months later, i noticed the "Aging" body appear again, and also my trackpad not recognized any click anymore . I planned next month, to repair this machine. hopefully apple will replace the upper case again. I always worried, what caused this thing happen every year. . ?, I don't have time to handle same problem for the every year. it just not worth it.