The reason I am posting this is two Apple technicians (of retailers'. Apple Store has opened just last week here in Istanbul. couldnt show it to a genious yet.) suggested me to do so. At first glance they were suspected of my swollen battery causing this. However, battery is at the back side of my Macbook as with all other late 2009 non user replaceable Macbooks as far as I know. So that doesnt explain this "phenomenon". Am I wrong? Perhaps I should mention, the plasticlike cover under my macbook was swollen too and screws started to drop off. Apple changed the cover at no cost but it happened again. any thoughts what could have caused this?