Larry,
Maybe the problem is that you are using asetmast.acc_set_id field directly. Try to store it to theform property and use this property in your select

* After moving to the next record
Thisform.acc_set_id = asetmast.acc_set_id 
.........
 
SELECT ;
  ....
  ASetDetl.acc_set_id = Thisform.acc_set_id 

>Sergey,
>
>It is the active page I am dealing with. I am probably missing something really basic or trying to do something impossible as this is my first attempt at using a grid with a SQL query driving the contents.
>
>Larry