Loss of Norton Toolbar in Outlook 2007

Has any solution been found for the loss of the Norton toolbar in Outlook 2007?

 

It used to be there but disappeared at some point.  I have looked around and seen various messages posted but none seem to solve the problem.  I have a laptop and desktop, both with Windows 7, NIS 21.3.0.12 and Outlook 2007.  The desktop has the toolbar OK but not the laptop.