reading Japanese mails from hotmail

[anonymousyo]

I use Outlook to download and store in my HD the
mails that come to my hotmail account. I can read mails
in Japanese in Hotmail (on internet), but when it is
downloaded to Outlook, I cannot read many of them. I can
write and read Japanese in other software. FYI, I have
Windows XP and Outlook 2003 (and a Toshiba computer all
bought in US). How can I read these Japanese emails?
Thanks!