My mother just sent me this photo of her 2013 27" iMac. I'm guessing it's a massive failure of some kind in the LCD panel, but does anyone know exactly what might have happened? It has persisted after turning the computer off overnight so it's not an artefact of high temperatures. The computer hasn't been moved, hit or dropped to physically damage the LCD.
I'll take it to the local Mac reseller when I go to visit in a few days, but I'd just like to have a heads-up on what might be wrong with it!
I'll take it to the local Mac reseller when I go to visit in a few days, but I'd just like to have a heads-up on what might be wrong with it!