dynamic text box is not parsing text correctly in flash player 10

Question

The code is nested inside a movieclip in a navigation button. Here is the block of code with the offending piece of code commented out. This all worked fine in Flash Player 9 butonce it started beig viewed in FLash PLayer 10 the offending code caused the navigation bar to default all dynamic html to "true" With the code commented out the navigation bar works fine except for the button with the nested code we are looking at here. I have searched for an answer to this across various forums - similar problems pont to this being a possible bug in the player - Has anyone found a solution to this type of issue?

my_text.text = _root.hhText_mute_off;

my_text.styleSheet = _root.myStyle;

//my_text.htmlText = true;

my_text.autoSize = true;

my_text.border = true;

my_text.background = true;

my_text.backgroundColor = 0xFFFFE1;

my_text.textColor = 0x000000;