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I've just upgraded to Mountain Lion and everything seems to work apart from an annoying black rectangle always around my pointer.

Here a screenshot (you can't see the pointer): enter image description here

Any ideas?

Thank you!

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System preferences > Accessibility > Zoom > More Option > deselect "Show preview rectangle"


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Please keep in mind to come back and mark your answer as the accepted solution. Thanks :) – Oliver Salzburg Jul 26 '12 at 13:56

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