I have built a master form which queries contractor names.  This form is link
to two subforms which are pulled from two tables which are related:  
1)  Subform has all of the contact info for the companies
2)  Subform two has what they specialize in.

These forms were built so the secretary can pull up companies and update
their data.

When I use my drop-down to choose a company on the Master form, it pulls up
the data for the two subforms fine. When I try to update company contact info
and specializing data the first time, it also works fine.
Again when I use the drop-down and pull another company from the list, the
two sub-forms pull data fine.  However, when I try to update the contact and
specializing data in the two sub-forms, I get this message:  "The record can
not be deleted or change because table 'Contractors Specialties' includes
related records.'

Can this form not be used to update information if the tables are related?  
Please help me fix this issue.

With best regards,
Tamara