Sybase SQL Anywhere and Delphi 3.0 (AutoIncrement Fields)

Hi,

I have problems with Sybase SQL Anywhere and Delphi. Each time I try to
Post a Record, I get an Error Message that tells me that the
autoincrementfield must have a value. I  thaught that autoincrementfields
where assigned a value by Sybase and not by Delphi.

Can anyone help me. thanks.

PS : Connection is made by an ODBC-Driver.