Running Outlook on the iMac causes the screen to flicker and eventually black out and reduce to half/split screen display.

Anonymous
2018-12-04T05:06:11+00:00

Running Outlook on the iMac causes the screen to flicker and eventually black out and reduce to half/split screen display.

If I don't run the Outlook app the Mac runs like clockwork.

With Outlook active, at some point the flickering begins and then gets progressively worse until the screen is completed fuzzed or it pops back to a half black screen (which continues to flicker intermittently - more often than not)

Whilst it sounds like a hardware issue (and I've ordered a new Mac thinking it was!) it appears to be tied to Outlook.

iMac (Retina 5K, 27-inch, Late 2015)

3.3 GHz Intel Core i5

8 GB 1867 MHz DDR3

AMD Radeon R9 M395 2048 MB

Mac OS 10.14.1 (18B75)

Outlook 16.19

Rebooting seems to clear it until we run Outlook again, then the cycle continues.

Outlook | MacOS | Legacy Outlook for Mac | For home

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  1. Anonymous
    2019-06-19T09:00:58+00:00

    Ive got exactly the same Mac 27 Retina late 2015 and have isolated the flickering down to when I open Outlook. Apple have been unable to resolve the issue unless I take the machine in to a service centre which could see me lose the machine for upwards of a week which is a non starter as I use it to run my business. Does anybody know of a software fix for this issue?

    I wouldn't wait on MS to be honest. This issue has now been reported for over 8 months and they don't seem willing to accept any responsibility, despite the problem occurring after an Office update, which has been commonly reported!

    The last thing I tried, and appeared to work (unless it was coincidence), was I booted the iMac up in safe mode and used for a few hours, then restarted as normal. I've had no issues since.

    Hope this helps.

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  2. Anonymous
    2019-06-19T08:54:16+00:00

    The only think I would say with this is that I never had a problem before upgrading to Mojave. When I previous OS versions like Sierra and El Captain I never had the issues. So Apple Can say it's Microsoft but maybe it's the Apple OS. I've deleted and reinstalled the latest version of Outlook on the 18/06/2019 and it does the same thing!

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  3. Anonymous
    2019-06-19T08:44:08+00:00

    Ive got exactly the same Mac 27 Retina late 2015 and have isolated the flickering down to when I open Outlook. Apple have been unable to resolve the issue unless I take the machine in to a service centre which could see me lose the machine for upwards of a week which is a non starter as I use it to run my business. Does anybody know of a software fix for this issue?

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  4. Anonymous
    2019-06-18T17:57:26+00:00

    This doesn't work unfortunately. I've just installed v16.26 after moving the current version into the trash as recommended. As soon as I opened the new version it did it again and i had to reboot.  

    I also checked to see ~i had actually updated to the v16.20 and I have.

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  5. Anonymous
    2019-06-13T00:01:19+00:00

    Just google "Outlook Mac _____ "(version) you want and it will take you right to the page.

    These links may also be helpful:

    https://docs.microsoft.com/en-us/officeupdates/release-notes-office-2016-mac

    https://docs.microsoft.com/en-us/officeupdates/update-history-office-for-mac)

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