Create a double-headed (one X display, 2 screens) CDE configuration
as follows:

1. As root, copy /usr/dt/config/Xservers to /etc/dt/config/Xservers.

   * You may need to make the directories under /etc first.

2. In the copy of /etc/dt/config/Xservers, change the last line (which is
uncommented) that reads:

   :0 Local local@console /usr/openwin/bin/Xsun :0

   to 

   :0 Local local@console /usr/openwin/bin/Xsun :0 -dev /dev/fb0 -dev /dev/fb1
    
   * Refer to the "Xsun" manual page for more information on the options
     to Xsun.
   * Make sure that the devices in this line match your system's configuration.
 
3. Either reboot your system, or exit CDE, login at the command line,
   and kill and restart dtlogin

(Note: In Solaris 2.6 or earlier, the front panel does not show up on both
screens. For Solaris 2.7 (CDE 1.3), a separate front panel is displayed
on each screen.)