So my 15-inch rMBP was sent out for repair due to a heat issue. However, not only was my fan/heatsinks replaced, my speakers, logic board, and display was also replaced after they found other issues apparently. My main gripe about this is that nothing was wrong with my display and they changed it out from my Samsung retina display to an LG retina display. Does anyone know if the newer revisions of the LG displays still have issues like ghosting?