Increasing font size gets blocky

[Tony]

Hi,

Newbie! I have created some text with no fill. I have exported this
text as a png file to Swish for flash animation. It sits on top of
fading/rotating images just nicely. I can fade/move the text etc but
if I enlarge it, it gets blocky.

How can I keep it smooth? Take a look at [url]www.elixia.com[/url] for the effect
I am trying to create.

Thanks!

Tony