I created a form with a field for the telephone number.  The field is defined
as a text field with an input mask of \(999")"999-9999::- which I created
using the wizard.  I also defined an input mask for the field in the form
using the wizard.  Now when I open the form I get the message:
Syntax error (missing operator)in query expression '(999) 999-9999::_'

I've done this with a form and its sub form.  I ignore the message and the
main form opens with the field displayed as I asked but the sub form won't
open at all.
I tried deleting the input mask from the form ( the mask didn't even show in
the properties of the field in the sub form) and I still get the syntax
error.  The form is built on a query but I can't see where that would make
any difference.

Any suggestions?