I got my first Mac yesterday, for the second time. I was finally lured into the world of Macs, but alas my first effort (perhaps a week 48 or 49) turned sour after the machine started to repeatedly reboot itself, after three good hours of use, into the gray bootup screen. Then it stopped rebooting at all ... and just hummed and farted with no screen activity at all. It did have yellow tint and one stuck red pixel, for what it is worth. Anywho, just got a replacement after a very good experience with apple support. The guy told me that yes, there were problems at the factory in Shanghi and were working quickly to correct it. The ETA for the new one was Dec 28th, though it came on the 21st (I think I called for replacement on Dec 8th?). Anyway, the new model has no discernable tint yet (I am not trying too hard to find it, though I did the tests). Also no dead/stuck pixels, the hard disk is quiet, no flickering, etc. Good luck to the others, may your machines be worthy of the logo.