Sergey,

Thank you again. I tried out both your examples. I'm sticking with the second one. I'm assuming the only difference between your two examples is readability, correct?

>Elgin,
>
>It should be

     IF  !("PCB" $ UPPER(fluid)) ;
>        AND !("PYRANOL" $ UPPER(fluid)) ;
>        AND !("WECOSOL" $ UPPER(fluid))
>* OR
>     IF  NOT ( ("PCB" $ UPPER(fluid)) ;
>        OR ("PYRANOL" $ UPPER(fluid)) ;
>        OR ("WECOSOL" $ UPPER(fluid)))
>

>
>>I am trying to figure out why the second IF statement is not working correctly. In my code the field tmpName.liquid contains "PCB "
>>
>>If tmpName.liquid contains any of the strings "PCB", "Pyranol", or "Wecosol" I want it to execute the ELSE condition. But no matter what I try it always ends up doing the first DO CASE statement. When I watch the statement !("PCB" $ UPPER(fluid)) in the debugger it shows .F. once I get to the REPLACE statement. Why does it still step to the next line - DO CASE, instead of going to the ELSE condition. I just don't get it.
>>
>>

>>IF !EMPTY(tmpLiquid.h20) && Evaluate only if record has a KF Analysis.
>>   lcH20 = ALLTRIM(tmpLiquid.h20)
>>   REPLACE fluid WITH ALLTRIM(tmpName.liquid)
>>      IF !("PCB" $ UPPER(fluid)) ;
>>        OR !("PYRANOL" $ UPPER(fluid)) ;
>>        OR !("WECOSOL" $ UPPER(fluid))
>>          DO CASE
>>	    CASE 1
>>               Do something
>>            CASE 2
>>               Do something
>>            OTHERWISE
>>               Do something else
>>           ENDCASE
>>      ELSE
>>
>>          Do other stuff
>>
>>      ENDIF
>>ENDIF
>>

>>
>>Thank you for your help. I'm at wits end.