How to use serial / autonumber in a PostgreSQL / Access combination

I'm working up a database in PostgreSQL (8.3) that users will interact with (update and query) via Microsoft Access 2003. Several tables have primary keys defined as 'serial' in PostgreSQL. These columns, when linked into Access, show up as 'Number' and don't auto-increment when inserting new data into the tables via Access. Is there a way to make serial primary keys work through Access? Maybe serial isn't the appropriate type? All I need is something unique that is automatically generated by Access when a user starts a new开发者_Go百科 record.

A serial is a integer with a default value from a sequence. If you don't insert anything in this column, the default value is used. That will always happen, no matter what client you use. Access 2003 works fine as a client, also with default values.

Tip: Ignore this column in Access and let the database use the default value.