Go to Document > Header and Footer. Triple-click your mouse in the header to highlight it completely.
On Mac, go to Format > Highlight. Make sure the highlight color is set to white.
On Windows, go to Format > Font. Make sure the highlight color is set to white.
NOTE: All support for Final Draft 7, including software activation, has been discontinued. You may find solutions to problems in the online knowledge base or in the PDF manual found on the installation CD.