KB20283: 'Invalid list separator (or not supported) - check the current Regional Setting' error message appears when using functions in the metric definition in MicroStrategy Developer 9.x

SYMPTOM:
In the Strategy Metric Editor, users draw on functions with multiple parameters. When they attempt to save or validate a metric the following error message appears:

The DSS Errors.log displays the following entry:
393:Invalid list separator (or not supported) - check the current Regional Setting.
393: Unexpected Error (Line no. 0, Number: 80041A16, Description: Invalid list separator (or not supported) - check the current Regional Setting.
CAUSE:
The separator used in the metric editor is invalid for the current Regional Settings (on the user level) in WinNT or the same character as the 'Decimal separator' is used for the 'List separator'.
 
ACTION:
Follow one of the following options to create a valid list separator:

• Use a 'List separator' that is different from the 'Decimal separator'.
   
  OR
   
  
• Use the List separator in the Strategy metric editor to separate the function's parameters.