Greg

Thanks for the quick response! I'm sure that'll do the trick.

I have a simple rectangular movieclip, say 40px wide and 1000px tall. I use a 40 by 200px BlitMask on it, and tween (with TweenMax) the movieclip down. Works fine. But if I apply a blurFilter to the tween, with a blurY of say 10px, then when I tween the blur extends OUTSIDE (above and below) the BlitMask. I want the blur to be masked by the BlitMask - i.e. I want the blur, but still want it masked to the 200px height of my BlitMask. Obviously I must be doing something wrong. Anyone have the solution? Thanks in advance! Greg