Natural System Error Messages 4550-4599

NAT4599: Value of session parameter PD must not be "0".

Text
Value of session parameter PD must not be "0".
Explanation
This error occurs if you issue one of the terminal commands of the
NATPAGE utility, and the PD parameter, which determines the number
of screens to be stored with NATPAGE in the Natural system file is
set to "0".
Action
Use the GLOBALS command to set the PD parameter to a value
between 1 and 255.