Frustrating - screen constantly shifts.

iMac 27" running Yosemite. Most frustrating when working in Excel I type a value in the cell hit the enter key and the enter screen worksheet screen shifts off to another cell so I need to mouse back to the cell I was working in. InDesign forget it. I import an image to the location let go of the mouse key and the and the screen shifts over. Most frustrating. I have tried different resolutions but no solution there. I am at wits end because the problem occurs both with mouse and keyboard.

Any solutions would be appreciated.



Thanks....Dwight

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