My screen moves (imjac)
Mine did that too. Did you recently hook it up to a projector? That seems to be what triggers that reaction on my mac. Anyway, the 1st time that happened, it went away after a couple days. Now, it's happened again, and I went into system preferences and changed the resolution. It has fixed the moving problem, but the icons are still bigger. I'm still working on it.
Hope this helps!
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