Drop shadow problems

I have created a site where I have the content scroll up and down. I have created a background shape with tabs placed up and down the graphic (to get a better idea swf is attatched.

why when i make the graphic bigger down my dropshadow filter not work when i publish it and when i shrink the graphic back down it works again.

anyone?

filters in flash 8 have a size limit (near 2800 px) so if your MC is bigger than that then it wont work.

check flash 8 help for the exact size.

how are you making your graphic bigger via a motion tween? if so verify that the filter is applied on all keyframes.