Form will not allow changes

[Zipster1967]

I have a from bound to a query for the most part but when I try and change one of the fields in the form I get a beep. No error message but the form combobox does not change. Where should I look for possible causes? What settings should I have for this form?

[RuralGuy]

Try some of these suggestions: http://allenbrowne.com/ser-61.html