ODBC driver

I downloaded and installed the ODBC driver for Postgres.  I have a linux
box on the network and the postgres server is running on it.  I am
trying to connect to the sample database mydb from a Windows NT ver 4.0
machine though ODBC with C++ Builders BDE.

I get the following errors:

Unknown user name or password.

Failed to authenticate client as Postgres user 'pcordone' using <unknown
authentication type>: be_recvauth: unrecognized

message type: 65536

Alias: PostgreSQL

Can anyone help me?