Adding bullets to dynamic text

I’m trying to add bullets to some dynamic text I’ve got from some xml. everything works in my movie text wise except the bullets. I’m adding a textformat - here’s current code as part of initial load (change event is handled elsewhere (again, works except for bullets)

var textFormat:TextFormat = new TextFormat();
textFormat.bullet = true;
roomdesctext.setTextFormat(textFormat);
roomdesctext.text = roomxml.image[0].attribute("description");