>Any way to identify a record if a logical field has not been set to either .T. or .F.? I know for all intents and purposes it is .F., but let's just say for argument's sake...

PMFJI,

In addition to what Tore and David advised, you might consider making the column nullable. If your logic involves scatter/gather, you lose the status of isblank. to expand David's example

create cursor x1 ( l1  l )
append blank
? x1.l1, isblank( x1.l1 ), empty( x1.l1 )
scatter memvar
? isblank(m.l1)
gather memvar
? x1.l1, isblank( x1.l1 ), empty( x1.l1 )
replace l1 with .f.
? x1.l1, isblank( x1.l1 ), empty( x1.l1 )
replace l1 with .t.
? x1.l1, isblank( x1.l1 ), empty( x1.l1 )

I had a situation where I really had to knoww if the user entered 0 or not and the only reliable way I found was to use NULLs.

Bruce