initdb failed: invalid value for parameter "lc_messages": "ENU"

Tried to use postgresql under cygwin. latest available version which is
included in the cygwin-setup. Using English WinXP-pro, computer located
in Sweden. Any ideas someone?

-- Mattias

bash-2.05b$ initdb --version
initdb (PostgreSQL) 7.4
bash-2.05b$

bash-2.05b$ mkdir /data/db/postgresql
bash-2.05b$ ipc-daemon2 &
[1] 1320
bash-2.05b$ initdb -D /data/db/postgresql
The files belonging to this database system will be owned by user "mattias".
This user must also own the server process.

The database cluster will be initialized with locale ENU.

fixing permissions on existing directory /data/db/postgresql... ok
creating directory /data/db/postgresql/base... ok
creating directory /data/db/postgresql/global... ok
creating directory /data/db/postgresql/pg_xlog... ok
creating directory /data/db/postgresql/pg_clog... ok
selecting default max_connections... 100
selecting default shared_buffers... 1000
creating configuration files... ok
creating template1 database in /data/db/postgresql/base/1... FATAL:
invalid value for parameter "lc_messages": "ENU"

initdb: failed
bash-2.05b$