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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

157 answers

Sort by: Oldest
Most helpful Newest Oldest
  1. Anonymous
    2019-06-12T06:42:30+00:00

    Hi! I spent a lot of time w/Apple Support and they directed me here. Having the same problem w/my iMac 27". This started after the update sent through from Microsoft on about 5/17/19. I've used Outlook for years and not happy to switch but will have to if they don't fix this. Basically I have to quit Outlook after I view my mail which is really a pain. If I don't keep it open, then my computer behaves just fine.

    Since I "rent" MS Office annually, don't know how to go back to version 16.23 which I understand is more stable. Does anyone know? Thanks.

    Not an expert ,but think you can go here ......

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

    First move your current version of Outlook from Applications to Trash  .(do not delete until you are sure 16.23 is there and works .)

    Good luck !

    Was this answer helpful?

    0 comments
  2. Anonymous
    2019-06-12T14:26:19+00:00

    Thanks for the info! I'll post if this works.

    Was this answer helpful?

    0 comments
  3. 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)

    Was this answer helpful?

    0 comments
  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.

    Was this answer helpful?

    0 comments
  5. 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?

    Was this answer helpful?

    0 comments