I posted a question in the Flash forum, which appears to be anoying quite a few members. You don't seem able to post images direct on the Flash forum so I'm posting it here with a link.
The problem I was having was the crappy anti-aliasing of text in Flash.
Flash anti aliases all objects on the screen and this includes text if it's in a "text block". Frankly Flashes anti-aliasing is u/s. However if you alter the text into a "text field" Flash does'nt anti-alias it, so the text remains far sharper.
Sorry about posting here but I wanted to post the image.
The full explanation can be found at Flash Support page
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