trouble with to_char('L')

Hi,

my database has UTF8 encoding and Finnish locale, the client_encoding
and the console is set to WIN1252. I created a table with a single
NUMERIC(5,2) column and inserted a few values. Running a query 'SELECT
to_char(money, '999D99L') FROM table' through psql gives the following
error message:

ERROR:  invalid byte sequence for encoding "UTF8": 0x80
HINT:  This error can also happen if the byte sequence does not match
the encoding expected by the server, which is controlled by
"client_encoding".

The graphical Query tool returns a set of empty rows. The query works
ok without the 'L'.

Thanks in advance,
Mikko