My brand new iMac suddenly has a transparent grey bar that runs across the entire screen after being on a few minutes

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My brand new iMac suddenly has a transparent grey bar that runs across the entire screen after being on a few minutes

Not sure its related to update to Catalina OS, but my brand new iMac suddenly has a transparent grey bar that runs across the entire screen after being on a few minutes. It disappears after a reboot, but then comes back on. Looks like the screen flickers as well. ???

[Re-Titled by Moderator]

Posted on Nov 11, 2019 8:51 AM

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Answer 1

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RachT1

Level 5

7,385 points

Nov 11, 2019 9:17 AM in response to lostsprings

Since this is a brand new iMac, I would suggest either returning it, or if you are outside of your return period, contact AppleCare through https://getsupport.apple.com.

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My brand new iMac suddenly has a transparent grey bar that runs across the entire screen after being on a few minutes

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