Rails - Nov 2006 - PostgreSQL ActiveRecord default localized date assigned in test env

Hi,
today I''ve configured an XUbuntu as workstation (ok I know...).
Using the following packages to make Rails interact with Postgres:
ii  libpgsql-ruby1.8                       0.7.1-7
ii  postgresql-8.1                         8.1.4-0ubuntu1
using rails 1.1.6 from gems.
The problem came up just on the testing environment, when I save a
model I get a:

ActiveRecord::StatementInvalid: PGError: ERROR:  invalid input syntax
for type date: "ven set 15 12:00:00 CEST 2006"

I never setted that (date) field in the test code, neither in the
method, and in the DB column definition there ain''t default value.
So, merry christmas, :-) does it just came up from nowhere? And it is
formatted like my current locale config (italian).

Using script/console and doing the same stuff I did in the test method
it saves it with no problem.

I''m with no clue, and right now I can''t test this very code on
another
machine, but I''m pretty sure it didn''t screw up like this when
I
worked on the OSX using the fink packages (sorry I don''t remember the
versions).

Anybody has some clues? Thanks,
Enrico

-- 
"Complete independence does not mean arrogant isolation or a superior
disdain for all help."
-Mahatma Gandhi