At 05:35 AM 11/02/2008, you wrote:

>I did some futher investigating.... I came up with a very simple
>program that had 1 master and 1 detail TwwiboQuery .
>The master data has 4 columns that the detail will use in a
>parameterized query. One of the columns in the master may contain ''
>(blank) data, but never null.
>
>When I compile and run the program in Delphi 2005, the detail data is
> found correctly. When I run the program in Delphi 2007 the program
>does not find the detail rows that have blanks in the Master.
>
>Is there a setting I'm missing or what?

ParamCheck? Perhaps the default changed from True to False between D2005 and D2007.

Helen