Data access page won't accept data

[Linda]

Using Access 2002, I'm creating a data access page that I
want to use as a timesheet. Each authorized user should
be able to select his or her name, a date, a project, and
a number of hours. I created the Page using a Wizard,
but it won't allow data entry even though "allowEditions"
is set to true for the page and "DataEntry" is set to true
for each text box displaying a value. I can neither
click in a field to enter text nor click on the New icon,
which is disabled.

The form includes fields from multiple tables. Is that
the problem? If I only use fields from one table, it
works fine. Unfortunately, I either need to use fields
from multiple tables or denormalize my database to the
point of silliness.

thanks for any help.