In May 2023, after an update for my Office 2021/Outlook 2021, my startup page changed its look like it did for many others. So I had to spend a lot of time putting it back to my old familiar view/look. However, one thing it does when I start it up is: the right pane swings over to the left then swings back to the right. Wierd. Anyone know why it does this and how to stop it?

I did discover that this is the "Notifications" Pane that temporarily swings open to the left when starting up MS Outlook 2021. Not sure why this happens or how to make it not happen.

As of 24 June 2023, the "Notifications" Pane no longer swings open to the left when starting up MS Outlook 2021.

Microsoft must have fixed this glitch in a recent update. Maybe they are actually reading our comments on this forum