the problem is that your mask does not cover the area on the last keyframe, rather it just animates the lines across showing only portions of the image.
So your last keyframe must cover the whole area you want to be visable.
ok, fair enough thats looks alright. hope you dont leave it on 12fps like it is on that file, If you increase the fps the animation will be much smoother and alot nicer.
:: also is there any reason why there is a code on frame 1 of the mask animation mc that says
play();
wouldnt that obviously play since there is no stop action on the first frame of that mc?
i still think this animation can be done in about two layers, just seems like that guy did a bit too much for a simple animation like that. Just use shape tweens and shape hints. but It works i guess. ahh just call me picky. lol