Continuing problems with outlook[dot]com

Outlook.com has given me a new way of becoming annoyed. Often, it opens normally and displays the array of folders I have created with their unread messages. But when I click on an unread message, I get – nothing for a while – and then a graphic

“Your message can’t be displayed right now. Please check your network connection and try again later.”

The problem is that I’m connected on a rock solid gigabit fiber optic line that has gone down maybe twice in the last year. So the network connection problem story is a lie. Because everything else I am doing is fast and fine.

Any suggestions?