Long story short, right at the end of the apple care period, I brought this machine in for lines appearing on the screen on dark backgrounds (like the FPC timeline) After much escalation, the machine ultimately was sent to an Apple facility in California. They supposedly replaced the GPU, Logicboard, HD and LCD. This was about a year ago. Today, mid use I get this: The machine freezes as well Force restart it to get this: Won't go any further/locked up Force restart again and get a little further: Locks up as the desktop loads I don't really know what to do. It's been too long to really expect Apple to do something about this, again, since it was a year ago when they "fixed," it last. I don't really want to have to replace it as it is mainly used just to print shipping labels, but I don't know if it's worth trying to fix. Might it be something else?