Is this some sort of Mountain Lion bug? Suddenly, occasionally, when I close a Preview window, another window of the same dimensionsbut blankmanifests underneath the closed one. I cannot close it, and have to force quit the application.
A similar problem happened yesterday with Mail; there was an all-black window (with no title bar or anything).
Why is this happening?
A similar problem happened yesterday with Mail; there was an all-black window (with no title bar or anything).
Why is this happening?