Microsoft (ODBC - Access Driver) - Operation must use an updateable query

Hello,

I have an application written in Delphi 5 that uses ADO to open an ODBC
source (An access DB). I keep getting this (Microsoft) error when trying to
add a record on one of the tables. It happens regardless of whether or not
it is Access 97 or Access 2000 unless I'm mistaken.

Microsoft (ODBC - Access Driver) - Operation must use an updateable query

Any ideas?

Thanks very much!
Margaret Warren