Beth, open the query.
Can you update the fields you want in the query?

- No: I can't update the fields in the query.
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Then you won't be able to update them in the form either.
For a check list, see:
   Why is my query read-only?
at:
   http://allenbrowne.com/ser-61.html

- Yes: I can update the fields in the query.
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In this case, it's time to examine the properties of the form. On the Data
tab of the Properties box (looking at the properties of the form, not a text
box), you need:
   Allow Edits        yes
   Data Entry         no
   Recordset Type  Dynaset
For the controls, the Locked property should be No, and the Enabled property
Yes.