Okay, I have a large scene (70megs) that I worked on for a long time. It doesn't look all that complex, but it has a hell of a lot of objects in it, a lot of glass and reflective metals, to the point that I reached a point where it took ten minutes to try to move anything or resize it. It's rendered up to anti-aliasing, and antialiasing has gone about 20%. But now, when I set it to antialias when I go to bed, I wake up in the morning and the monitor is black, and the only way to restore it is to cut the power to the monitor and turn it back on, and the anti-alias hasn't gone beyond where it was. No, power management is NOT turned on, nor is sleep mode. I've rendered other scenes overnight with no problem. I really need to finish this scene. Anyone have any ideas why this is happening?

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