My iMac (OS10.6.8) screen keeps jumping all over the desktop area, sometimes splitting in two, sometimes getting smaller, sometimes there is a blue border around the window I'm looking at. At times, this dance of the screen is so frantic that I'm unable to work.
Nobody seems to know anything about this problem. The people at the Apple Store gave my iMac a "stress test" and held it there for a day or so, and said they could find nothing wrong with the machine. The Apple Care phone answerer said she had never heard of such a problem.
Is anyone out there in the Forum who has heard of this issue?
Nobody seems to know anything about this problem. The people at the Apple Store gave my iMac a "stress test" and held it there for a day or so, and said they could find nothing wrong with the machine. The Apple Care phone answerer said she had never heard of such a problem.
Is anyone out there in the Forum who has heard of this issue?