Hi All, I'm wondering if there could be a problem in the JDBC driver. I'm calling: preparedStatement.setObject(i, value); where value is of type Boolean (with value false below)and created the column associated with that value as type BIT and I'm getting the following exception when the preparedStatement is executed. java.sql.SQLException: ERROR: zpbit_in: t is not a valid bitstring at org.postgresql.Connection.ExecSQL(Connection.java:393) at org.postgresql.jdbc2.Statement.execute(Statement.java:273) at org.postgresql.jdbc2.Statement.executeUpdate(Statement.java:73) at org.postgresql.jdbc2.PreparedStatement.executeUpdate(PreparedStatement.java: 126) at Database.insert(Database.java:205) (my code) ... Any help would be appreciated. Thanks, Ian