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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.
Using older versions of Outlook for Mac for personal email and calendar
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.
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!
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.
I have taken to running office 365 under parallels its fine, Microsoft have told me that they will not be make a fix for this issue which is annoying as were paying to use the software.
All the problem started with an office 365 update a few weeks after installing Mojave.
I do try opening outlook on the Mac occasionally but it still makes the screen flicker after a few minutes, I give up and go to Parallels.
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!
I have taken to running office 365 under parallels its fine, Microsoft have told me that they will not be make a fix for this issue which is annoying as were paying to use the software.
All the problem started with an office 365 update a few weeks after installing Mojave.
I do try opening outlook on the Mac occasionally but it still makes the screen flicker after a few minutes, I give up and go to Parallels.
I have taken to running office 365 under parallels its fine, Microsoft have told me that they will not be make a fix for this issue which is annoying as were paying to use the software.
All the problem started with an office 365 update a few weeks after installing Mojave.
I do try opening outlook on the Mac occasionally but it still makes the screen flicker after a few minutes, I give up and go to Parallels.
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.
Thanks Luke I'll definitely give that a try.