Click to select the message to be viewed from the Message Header List.
The text of the message is displayed in the message view area.
Use the Next and Previous buttons on the Toolbar or options on the View menu to continue to select and read messages in the message view area.
To open a message into a separate window for reading:
Select the message and choose Open from the Message menu. From this window, the Edit and Attachments menus become available.
The message remains in the separate window even when you select another message in your Message Header List. You can then view two messages at the same time.