I downloaded the hunspell en_GB from http://wiki.services.openoffice.org/wiki/Dictionaries#English_.28AU.2CCA.2CGB.2CNZ.2CUS.2CZA.29
and when building the Ispell dictionary I got the following error ERROR: invalid byte sequence for encoding "UTF8": 0xe9640a 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". CONTEXT: line 220 of configuration file "C:/Program Files/PostgreSQL/8.3/share/tsearch_data/en_gb.dict" CREATE TEXT SEARCH DICTIONARY english_ispell ( TEMPLATE = ispell, DictFile = en_GB, AffFile = en_GB, StopWords = english );