BUG #1298: 22021: invalid byte sequence for encoding \"UNICODE\": 0xe16d61"

The following bug has been logged online:

Bug reference: 1298
Logged by: Lucas Sultanum

Email address: lucas(dot)sultanum(at)gcf(dot)com(dot)br

PostgreSQL version: 8.0 Beta

Operating system: Windows 2000 server

Description: 22021: invalid byte sequence for encoding \"UNICODE\":
0xe16d61"

Details:

Hello,

I am not sure if this is a bug or I am doing something wrong. When I execute
the following command (insert into a_cadclias values
('6542','65465','amaro','maro')) on pgAdmin III Query it works pretty
well, but when I try to do the same through a C# App connecting to the
database through an ODBC driver I get the following error:
"ERROR: 22021: invalid byte sequence for encoding \"UNICODE\": 0xe16d61"

I know that it has something to do with the word maro because when I take
the letter ()off and replace it with the letter (a) it works fine.

Bellow goes the table structure:

CREATE TABLE a_cadclias
(
dba_clias_cliente "numeric"(8) NOT NULL,
dba_clias_associado "numeric"(8) NOT NULL,
dba_keyclias_sq "varchar"(8) NOT NULL,
teste "varchar"(10),
CONSTRAINT dba_keyclias_sq PRIMARY KEY (dba_keyclias_sq)
)
WITH OIDS;

Att: It is valid to said that I have also tried the Npgsql dll and got the
same error.
Versions tested:
"PostgreSQL 8.0.0beta2 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC)
3.2.3 (mingw special 20030504-1)"

AND

"PostgreSQL 8.0.0beta4 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC)
3.3.1 (mingw special 20030804-1)"

Regards

Lucas Sultanum