TLF Markup from Flex to Flash

Hello,

I am encountering some difficulties getting markup that I created in a Flash Builder TextArea to look the same once it's imported into a Flash TLFTextField object.  The content and styling (most) makes it over, but there are leading issues and some styling information not being used. 

To get the markup into the TLFField I use:

tlfTextField.tlfMarkup = markupXML;

I've tried the following as well, but when I do nothing seems to happen.

tlfTextField.textFlow = TextFlowUtil.importFromXML(markupXML);

Any thoughts?

thanks,

jr