The pivot function allows for a 90 degree rotation of the panel. This capability of shifting from landscape to portrait mode gives the user more room on the monitor, so that he or she does not have to scroll as much, i.e. in word processors.
The required software for Windows 9x/2000/XP and NT is included within the most devices' scope of supply and can be installed easily. Please follow the instructions given in the manual. The graphics card drivers by ATI and nVidia offers this function currently support this function as well. So it's not mandatory any more to use separate piece of software.