scroll Pain - content shows outside frame

I'm creating a zooming window using the scrollPane component with AS2.  It will contain a large diagram scaled to fit the scrollPane.  A resizing button will scale it back up to original size.  The point is to show the whole diagram and be able to zoom in and pan to read details.

The scrollPane content is a Library clip and I'm using loadMovie to dynamically load the image into that clip using a variable.

ScrollPane.contentPath="picHolder";

ScrollPane.content.loadMovie (imgFile);

Problem:  the content shows outside the frame. Look slike it's under the frame and scroll bars but bleeds outside the boundaries.