New MBP (non-Retina 2012), 10.8.2. Machine is boring and normal for nearly everything, but if I try to run Minecraft... Well, that's totally normal too. Unless I try to go fullscreen, whereupon everything dies. Any attempt to transition to fullscreen appears to basically permanently kill the machine. It's still on. I can ssh in. If I put a DVD in, Apple DVD Player starts running. But the screen is never updated again. Once, I actually got Minecraft running fullscreen. Then I hit the key to turn it back (F11; yes, I have function keys set to actually be Fx instead of having their magic effects), and... no graphical updates ever again for any reason. Machine's otherwise fine. Cannot be rebooted; an attempt to reboot causes it to get partway through the reboot process, far enough along that I can't watch the logs anymore, and then... Nothing. Except jet-engine level fan noise. For at least five minutes. Looking at the logs: Dec 5 23:32:00 leptop reboot: rebooted by seebs Dec 5 23:32:00 leptop reboot: BOOT_TIME: 1354771920 318866 Dec 5 23:32:00 leptop ntpd: ntpd exiting on signal 15 Dec 5 23:39:36 localhost bootlog: BOOT_TIME 1354772376 0 Dec 5 23:39:37 localhost kernel: PMAP: PCID enabled So, basically, nothing at all recorded as happening from when ntpd exited to when, about 5-6 minutes later, I gave up and pushed the button. Apple Hardware Test says the machine is just fine, except it occasionally yields an SATA error (which Apple says is meaningless): http://support.apple.com/kb/TS4356 There are some graphics-related messages in the logs back around when Minecraft was running: Dec 5 23:24:10 leptop kernel: NVDA(OpenGL): Channel timeout! Dec 5 23:24:10 leptop kernel: NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error Unfortunately, I can't find much about these other than assertions that they became really common for a lot of hackintosh users around 10.8.2. That's seeming unlikely to be relevant to my MBP. So, Apple Hardware Test finds nothing, nothing I can find on the Internet relates to behavior like this... Haven't got a lot of ideas.