Two Tables:

People: Address:

PeopleID(autonumber) --AddressID (Autonumber)
Name(text) / City (text)
AddressID (long Integer)--- State (text)

So I created a form with the form wizard to include the Name, City, and
State Data fields.
It creates a main form called Address and a subform called People.

Then I checked the Link Child/Master fields to be sure they're set to
AddressID
(and they are - set by default when the relationship is made)

Problem is that when i use the Address(main form) to enter A record the
foreign key in the People table is left blank.
Why?!?!?! What am I doing wrong - This is driving me crazy!

Please Help!!
-Josh

I don't get it. your form looks like this:

AddressID: [Autonumber]
Address: [ ]
City: [ ] State: [ ] ZipCode: [ ]

Folks living at this address:
----------------------------

And you have a join by AddressID, which is an autonumber in the
Address table and a LONG INTEGER (Duplicates OK) in the subform, and
it doesn't work? (So the child is definitely People?)