Dynamic html text

How do i make a dynamic text bold out of actionscript. I tried

dyntxt.html=true;
dyntxt.htmlText="<b>BOLD TEXT</b> HERE";

dyntxt is the name of the dynamic text object. It works. But, I needed to do some things with alpha on it and therefore embeded the text (ALL). Now, the bold text isn’t shown at all. I even said the command

System.useCodePage=true;

but still nothing. Anyhone please help me…
thanks in advance…:smiley: