An exception when using UTF8 encoding

Hi,

   I met a headache problem. I'm a novice of PostgreSQL.

   I create a database with name "Users" and the encoding is UTF8.

   But when I connected the database and input \d command to list relations, I met a strange exception.

  

Users=> show server_version;
 server_version
----------------
 8.1.0
(1 ?)

Users=> \d
ERROR:  invalid UTF-8 byte sequence detected near byte 0xb1
Users=>

 

Is it a bug?

 

Best regards