Configuring preferences and options in Outlook.com
Hello Don,
I'm Diane, an Office Apps & Services MVP specializing in Outlook, and I’m happy to help you today.
I'm checking with support to see if it's a bug or intentional. Have you tried logging in to your account using a private browser windows? It will rule out caching problems.
For what its worth, I still have them on the left - if the change is intentional, the server your account is on was updated first.