CPDBF() <> CPCURRENT() in VFP9

>

>=SYS(3054,11)
>USE woentry
>SELECT * FROM woentry WHERE wono = "0"
>

Rushmore optimization level for table woentry: none

?TAG(4),KEY(4)

WONO WONO
>
>What conditions could cause the query not to be optimized??
>
>Thanks to all......Rich