So I've seen slight signs of the gpu being a pain for a few days now, thought I still had a little time but forced integrated gfx with 'gfx card status' and that seemed to be a solid work around, but I thought I'd check and see how it was going and allows dynamic gpu switching back on... the screen went blank sound kpet playing and I decided to force shutdown by holding the power button, as this cause the issues to subside in the past. unfortunately now after the apple logo with the loading progress bar it just goes to a blank white screen. I tried all the tricks, clearing nvRAM, safe booting, even opening it up, disconnecting the battery and holding the power button before trying to boot again. going to boot select (by holding option) seemed to work until I selected my boot drive and it did it's thing. Then I tried booting into verbose mode, which seemed to work a little better until some distortion and the white screen. BUT what I'm freaking out about now is that as verbose mode was running through some command line jargon I spotted a warning about not being able to disable sleep mode, so now I'm to scared to force a shutdown again... WHAT DO I DO NOW??? How long can I expect verbose mode to take rebuilding something (I didn't quite catch what) before it might be safe to force a shutdown again?