International characters not displaying correctly in the message list

Hi. I'm having problems with international characters in the from field in
the message list in SquirrelMail 1.4.19. Instead of the actual characters I
see eg. =?iso-8859-1?q?=C5slund_Tr=F6ger=22?= (quoted printable?). See
http://welzien.se/misc/squirrelmail.png for an example. For some reason the
characters look good in the subject field.

When I open the email, the from field display correctly though.

The from field in the email header:
From: =?iso-8859-1?Q?Rikard_=C5slund_Tr=F6ger?= <xxxxxxxxx@...>

The problem only occurs in the from field in the message list view.

The characters display correctly when using RoundCube. I haven't tried any
other mail reader.

System:

Gentoo
SquirrelMail 1.4.19
Apache 2.2.10
PHP 5.2.8-r2
DBMail 2.2.11_rc3-r1
Fetchmail 6.3.9

All software installed using portage ebuilds.

Installed plugins:
add_address
calendar
message_details
view_as_html
notes

--
/Peter Welzien

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