>If I use
>
> replace mydate with date()
>
> It works fine
>
> However if I use
>
> replace mydate with "10/18/2003" it does not
>work
>
> How can I do ?
>
> Moises

Moises,

You are trying to put a character type "10/18/2003" into a date type field. This does not work

You have to provide a date type as in

replace mydate with {^2003/10/18}

or 

replace mydate with date(2003, 10, 18)