mask shouldn't be in quotes.
if removing the quotes doesn't solve your problem what's the following show:
clip.cacheAsBitmap = true;
mask.cacheAsBitmap = true;
Thanks for your help, but this didn't work... must clash which some
other AS code.
what's that show in the output panel?
Thats where the problem is it's going to "_level0."
that looks ok.
what problem do you see?