Hi Robin,

the problem was null values

>Correction to second example -- nSum1 not nSum2
>>
>>
>>SUM nad_nonnationals, nad_nationals TO nSum1, nSum2
>>WAIT WINDOW TRANSFORM(nSum1) + " + " + ;
>> TRANSFORM(nSum2) + " = " + ;
>> TRANSFORM(nSum1+nSum2)
>>
>> or
>>
>>SUM nad_nonnationals TO nSum1
>>WAIT WINDOW TRANSFORM(nSum1) + " + " + ;
>> TRANSFORM(reccount() - nSum1) + " = " + ;
>> TRANSFORM(reccount())