>As many years as I have used FoxPro (since DOS) I am embarassed to ask this question, but it is beating me up.
>
>On some forms with Parent-Child files with the child in a grid, only those child records belonging to the parent appear. On others, the file pointer in the grid points to the first child record but shows records belonging to other parents as well (all tables opened in data environment and relations established there) What determines the behavior?

Without redesigning your data handling, do you set a filter on the child table ? Check for that on the forms that are working correctly and make the ones that do not work now behave the same. Is the child grid populated from a table every time or perhaps a select statement?