Sorry, misread the problem. In the header, if you hit enter before going outside the boundaries of the centre block of text for the header the text will stay inside that block. If you happen to go outside that block, the header appears to have only 1 section. This isn't true. The three sections are still there. Click ABOVE the header text and this is what you should see.

The Left and Right Boxes were filled in before the Centre box. Don't know if that makes a difference.
Header.JPG