R help - Nov 2007 - Stopwords in tm package

Hi to all,

I need to append/delete stopwords from the list that i can use from de
TM package. I use Portuguese stopwords.

When i see the list of stopwords using >stopwords("portuguese") I
have
some words with special characters like this:
"verdadeiro"    "voc??"         "voc??s"       
"vos"

I try to change the portuguese.dat file from stopwords folder in tm
library but, nothing happens.
I use R 2.6.0 in a Windows machine.

Thanks in advance.
Filipe Almeida