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4.22 PB available

Since the 10.10.3 update my 1 TB iMac shows, in the Finder status bar, anywhere from 4.22 to 6.17 PB available, which of course is impossible. Anyone else encounter anything like this? I called Apple and the tech was baffled and could only suggest reinstalling OS X which I will do overnight because it takes 6 hours.
 
I’m *still* experiencing graphics issues, even after the 10.10.3 supplemental update…

Running a late 2012 Mac mini 2,3 Ghz i7 with HD Graphics 4000 on 2 x Thunderbolt Display causes occasional on screen ‘digital noise’ eventually ending up in a kernel panic.

Already ran the hardware test several times resulting in ‘no problems found’…

Downgrading seemed to resolve the issue (which came up after the original 10.10.3 update), so it’s definitely software related… I’m already sorry for downloading the supplemental update. Will have to do the (time consuming) downgrading process form time machine once again I guess…

Very frustrating, since my workflow (paperless office) depends on reliable machine…
 
Running a late 2012 Mac mini 2,3 Ghz i7 with HD Graphics 4000 on 2 x Thunderbolt Display causes occasional on screen ‘digital noise’ eventually ending up in a kernel panic.

Do you have a panic log you can post?
 
It actually helped my old 2008 iMac with Mission Control lags. 10.10.3 update brought smoother GUI animations, but I still had to check the "Reduce Transparency" option for it to work with no choppy animations. But, it did introduce some weird behavior at the top of my display (some wavy, dead-pixel like effect.)
But the supplemental update fixed all that, and now I can have the transparency effect on. Probably runs at about 25 fps, but for a machine this old, I'm not complaining! I'm happy again. :D
 
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