I'm just asking because, when trying out the £2k machine instore to make sure I actually liked it and it didn't just look good on paper, I launched iPhoto and the machine just died. Black screen, fans off, all lights off, wouldn't turn on. The machine was pretty hot (very hot in fact) because the store was making it loop a 4K video in QuickTime. But if the machine will die in conditions like that it's unsuitable for me. I would have investigated instore, but when I got the manager I was chastised for minimising the video and he wouldn't believe that I was actually planning to buy it on that day (hence me wanting to try it a bit) - well, I was before the extremely rude manager! So is this regular, or a very irregular blip?