Alpha Channel Deteriorates On Scaling Image?

Sep 24, 2009

Using Flash CS4. I have some images with transparent backgrounds that I'm putting into Flash. Placed in Flash at original size, transparency looks great. However, when I scale the images to any different size, the edges of the alpha channel get real rough, not smooth and aligned to object. I've experimented with png, targa, gif, but all seem to have this problem. Is this some issue with Flash? I don't remember seeing this problem in say Powerpoint.

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