Hi, Brian-
It worked for me, too. I tried it in VFP 6.0 w/ SP3.

>wait window iif(this.value = 1, "Yes","No")
>Outside of a grid this works fine, but inside a grid, it gives me the message:
>Property value is not found.

Was the above an approximation of your code? If so, what is the code in your click?