No, you're on MacOS, so you have a different issue that already has a couple of existing topics. You installed MacOS 10.10, which has some well discussed bugs in it's video card drivers. Disable GPU usage in Photoshop's preferences for now. If you need to use the GPU features, then you may want to consider downgrading to a more stable version of MacOS (10.8.5 or 10.9.5)
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Re: When using adobe photoshop cs6 screen turns white and locks up, have to logoff and log back on
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