Edward,

I don't agree not to use SET RELATION in favour of SEEK().

SET RELATION when set in the data environment gives you a clear view of the relations between the data and the functions of the form (or screen for FP 2.6)

SEEK may be faster when you deal with only a one or two related tables, but i think ( i've not proven this ) this would not be the case when you have several (say more than 5) tables related to each other.

Besides that. It's a more beautifull option then isue about 6 SEEK()s in a row to update your table after the record pointer of the parent table changes.

"LONG LIVE SET RELATION"