changing language of system messages

["Thomas H." <me@xxxxxxxxxxxxx>]

since the update from 8.3.0 to 8.3.1., postgresql system & error 
messages as well as all logfile entries appear in german. i've already 
tried to change LC_MESSAGE in the postgres.conf without luck.

the db's LC_COLLATE is 'German_Switzerland', and i do not want to change 
it. i'd just like to have the system/error messages in english...

it's a windows 2003 system (english os with German_Switzerland locale).

thanks,
thomas