Wrong charset used for "This is an S/MIME encrypted message" string

[Marek M. <mi...@ip...>]

Hello all,
when I select SMIME encrypted message, following text appears:

  This is an S/MIME encrypted message.
  Click the security button to decrypt/verify it

In czech translation, message has following translation:

  Obsah této zprávy je zašifrován S/MIME certifikátem.
                         -
  Pro dešifrování použijte tlačítko na panelu hlavičky zprávy.
        -           -

There are three missing national chars "ž" and "š", because message has
ISO-8859-2 definition, but TB displays this message with Windows-1250, when
I manually change charset, they become correctly displayed.

Anyone can confirm?

-- 

Bye

Marek Mikus
Czech support of The Bat!
http://www.thebat.cz

Using the best The Bat! 5.0.0.138 BETA
under Windows 7 6.1 Build 7600 
Notebook Acer, Pentium4-M 2.2 GHz, 512 MB RAM, ADSL line