Help, Recently purchased a 24" Cinema display along with a 15" macbook pro. The screen has yellow fringing on the edges (apparent on the discolored menu bar) and some dust under the glass. I can live with this, however I've just noticed when the macbook is charging from the display it causes a really loud electrical hissing sound from the speakers. Remove the charger and it's fine. Has this been reported as a widespread problem, or is it local to my display?