At the top of the My Computer window, it used to show 'My documnets' and my wife documnets at the top. They have gone! It just shows 'Shared Document'.
First of I assume you mean missing from the desktop?
You must have deleted them by accident, check the recycle bin first if it is in there right click on the file and restore. If not click START and MY DOCUMENTS should be listed, right click and check SHOW ON DESKTOP.