>>>>I figured this out. Change you ERROR metod

>>>>FUNCTION Error
>>>>PARAMETER nError,cMethod,nLine
>>>><b>MESSAGEBOX('ErrorMethod')</b>
>>>>RETURN TO ShowMessage

and run your code. You wouldn't see ErrorMethod message because COUNT FOR IRegion=lnRegion doesn't generate an error!
>>>>
>>>>To confirm it just run COUNT FOR IRegion=lnRegion from command window on any open table.
>>>>You can use
>>>
>>>Yes, you are right. Count doesn't fire up an error. How could that be? I need it to fire on error. Do you know why this VFP function doesn't fire an error? It's amazing to see the reaction of the Count function.
>>
>>It's not only COUNT. I observe the same behavior with LOCATE and SUM. I would guess that any command with FOR clause works this way.
>
>I wonder if this is solved in VFP 7.

Yes it fixed. The COUNT and LOCATE I tried returned "Variable 'LNREGION' is not found" error message.