Bizarre Photoshop behaviour/display today

Question

Hi All,I'm in the middle of an illustration job right now with a deadline, and something very strange is happening that i can't work with. It's like a Display adapter issue or something. I've attached a screenshot. When I try to zoom out or in I end up with these duplicated images one inside the other, repeating over and over.I'm on Mac OS 10.13.6 high Sierra, with a 2.7 GHz procesor Intel core i5.16 GB memoryGraphics (card?) Intel Iris Pro 1536 MBThe files I'm opening are 5—12 MB tiffs.Hoping someone can advise! Help!Thanks,JohnBelow: Zooming in and out does this:

Anonymous · Accepted Answer

Just a thought but have you tried resetting Photoshop preferences

johnivanwhite · Answer

Still no go. Only unticking 'Use Graphics Processor' makes the problem fgo away.This has actually happened since I did a system security update and restart at lunchtime today. I’m reluctant to update to the latest OS, but maybe I'll have to, in order to update the display driver.God, once I update, I'm fearful of my iMac slowing down horribly—or things not working anymore, like my scanner.

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