Embedding Unicode Characters

Dear List

I am at a loss with flash fonts embedding once again.   I am using Flex 3 for coding and the Flash 4 IDE for font and assets management.

I used the following steps to include the fonts:

CS4 IDE:
------------
1) Library : New Font 'HelveticaNeueRegular'  mapped to Helvetica Neue Regular
2) Export for ActionScript and Export in Frame 1 enabled
3) Class Name: HelveticaNeueRegular
4) Base Class: flash.text.font
5) Publish file as swc

Flex:
----
6) Include the swc file in the project.
7) Code: Font.registerFont(HelveticaNeueRegular);

External XML:
😎 Use an external xml file for all dynamic text.  Define css classes with the span tag

External CSS:
9) Define the styles like this:
.articleText{
    font-family:"Helvetica Neue";
    font-size:15;
    color:#000000;
}

The Problem:
Now the above works fine, but when I try to display special characters such as superscripts or Caron accents they don't show up.

What I've tried:
I've tried to put an additional textfield with the additional characters (ie: ²Žž) to embed on the stage in the CS4 IDE as well as in the library as a separate symbol with the export in 1st frame enabled.  In both cases I included the characters with the text property option 'Character Embedding' > 'Include these Characters' and I also put the characters in the textfield itself.  I used both the real name of the font as well as the Libaray Font name (ie: HelveticaNeueRegular*)

No luck

Any suggestions on how to get these special unicode character outlines to display?

Thank you all

Regards

sk