All my folders (with emails) have disappeared. All the other stuff is there but not the folders. Help!

Hello everyone. Something occurred today that I don’t seem to be able to fix. All my folders (with emails) have disappeared. All the other stuff is there but not the folders. Help!

In the folder pane, try right-clicking on the tab for calendar, tasks, contacts, etc and make sure mail is checked.

OMG it worked!!!  Everything is back!!    I love you!  You are my new best friend!  Thank you very much Mr. Ogram, I have been fretting with this all afternoon.  Thank you and regards!  Rbs