Hi guys, first time poster here. I was in a hurry this morning and left my laptop on top of my bed in my hotel room. When I came back I turned on the laptop and realised there were 2 little four dotted specs that was not there before. Just wondering if the cleaning lady could have caused this when she was cleaning or if it's a dead pixel? And is there anyway to fix it? The macbook itself is 5 years old and has some pre-existing minor problems so I'm not too surprised if I caused this myself and only just realised.