Comment 15 for bug 610883

oups,
perhaps try this, forget to say you to update the module after deleted files .pyc or .pyo, backup the database and server folder first, cause to valid update of sources you must restart and update modules

did you have installed postgresql in utf8 encoding ?

try to create a new database too and test (after deleting .pyc .pyo, restart, update modules)

try to use my modification in server\bin\addons\base\ir\ir_translation.py" (delete file .pyc .pyo, restart server)

-(lang or '', tt, tools.ustr(name), source))
+(lang or '', tt, tools.ustr(name), tools.ustr(source)))

try to do a complete fresh install and new database (backup what you do before, folders and database)

if you want to use installer for the server, save your openerp-server.conf, install, overwrite the conf file restart server (no need to install postgresql and dependencies)