Interesting Flash Scrolling Problem

Hey all,

I have a simple Dynamic Text Window that contains a poem. When you click two different points in the dynamic text window it draws a curve between the two points (using onSetFocus and curveTo).

So, I have a dynamic text window, and can draw lines on the movie clip that is on top of the text window.

My problem is this:

Scrolling the text is easy with the built in scrollbars. But, when I scroll the text… the drawn lines on the movie clip above it do not move logically with the text!

What are some things I can look into to solve this problem? I know I can use a scrollpane component to move the drawn lines… However, how could I have just one scrollbar to move the text and the drawn lines simultaneously?