Without knowing exactly what you are seeing it is hard to tell you for sure. '''Do you have lots of messages open in tabs across the top of the screen and have pushed to Inbox tab off the screen?''' If yes right click one of the tabs and select Close Other Tabs. Now get in the habit of closing message tabs after reading messages. '''Have you lost the Folder Pane down the left side of the screen?''' If yes go to the Menu Bar at the top of the screen and select View-Layout-Folder Pane. ''If your menu bar is not showing press the alt key to make it appear and then select View_Layout-Folder Pane.''