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

Run outlook in low resolution mode, Microsoft have told me that they are not going to fix this as it only effects late 2015 IMACs.

That’s wonderful of Microsoft, being that for me that their June 11^th^update started this problem and has cost me a lot of time in sourcing the problem that they created. One of the two “late 2015” iMacs in my department was purchased in 2016, and in no way is either of them out of date, and both are still fully supported by Apple.

That’s really unacceptable for a Microsoft to create a problem and then say tough luck as it only affects some users!

Also, why ever would Microsoft or anyone have an option to run a program in low-resolution, unless they knew of a protentional issue with their software and put that option in? I can’t think of any user that would select that option?

Guys,

I have a solution but perhaps more user have to verify it. I am using Outlook version 16.28 (19071506). I have removed my old profile (The user) and then I create a new one. So far, I have been using for the whole morning and it is ok. 

All victims, please have a try and see if you have any new findings.

Pitman

Guys,

A bad news, right after I sent out this message, the problem happens again!

Therefore, please do not have to remove your profile, it does not work.

Pitman

Guys,

A bad news, right after I sent out this message, the problem happens again!

Therefore, please do not have to remove your profile, it does not work.

Pitman

I think one has to resign yourself to the fact that the issue will remain and there is no fix for anyone with a late 2015 unless MS  resolves for all

I have heard and can think of only four alternatives :

• If you are really that intent or have to use Outlook buy a new iMac other then a late 2015 and your problem will be solved and you can get on with life ( in any event 4 years is about the lifespan of a computer- your late 2015 Mac will then be "late" in the true sense of the word ??????  ) ;
• Reduce resolution which is a terrible option and a waste if you have a 5k display;
• Increase resolution to  Display>Scaled >More space in System Preferences - someone posted they did this but have not seen feedback if a successful fix;
• Use Apple Mail if you are able.It works Oh, so well and no frustration once you have sort of mastered the quirks  after Outlook.

Until then I see MS opened a ticket to fix

Who knows maybe when Catalina launched this could be by default or by chance fixed ...maybe someone with the expertise can download Catalina Beta and check it out ???  

Notwithstanding all and any posts , this is whether we like it or not ,we are with the options !