creating main form with subform

[Alex]

Hi everybody.

I have a query, which include ProductID, DistributorID,
[Category Descr] with repeated values for the [Category
Descr] (many), and another query, which include CategoryID
and [Category Descr] without repeating (one).

I tried to put comboBox on the main form for [Category
Descr] linked to the second query to get all rows for the
Category from the first query on subform.

I tryed to use wizard and create it separately, but it's
not working. When I put subform on the main form and try
to enter master and child field it says the forms unbound.

Could anybody clarify what's wrong with it?

Thanks