HTML Bold don't work, why?

Can anyone tell me why certain html attributes that I assign to a dynamic text field are not working?

I’m creating an xml document with php here:
http://www.redlinemediagroup.com/ahtahthiki/xml/exhibits.php

You’ll have to right click and view source cuase it’ll load a blank page.

I have all the text as “CDATA” because for some crazy reason html text doesnt work in flash without it???

But anyways I am using normal html just like always with “<b>word</b>” and “<u>word</u>” but the crazy thing is that only certain attributes work. Bold is not working, and its actually causing the text I set to bold to not even show up. Why would underline work but not bold? im going crazy

i have this as my code


thetext.html=true;
thetext.htmlText=thexmlnode;

what could i be doing wrong?