Outlook version Microsoft® Outlook® for Microsoft 365 MSO (16.0.14131.20326) 64-bit.
I set the reminder for most of my appointments to 2 days. At the appropriate time, the reminder window dutifully appears. Additional reminders populate the window at their appropriate times. The reminder is basically a heads-up so I can prepare as needed. If I leave the computer idle and the screen saver activates, sometimes the reminder window is closed (not minimized) when I reactivate the screen.
If I manually restore the window with Calendar->View->Remider Window, it will come back with the correct data. Is there a way to prevent the vanishing act?

