Resizing mask, easing scrollbar problem

[FONT=Verdana]hey, i used the example for an easing scrollbar that someone made on this forum (sorry cant remember who).

as shown here, the scroller works fine working

however you can see that the area to scroll is too small and id like to enlarge it a bit.
So i tried enlarging the mask and the textfield, now heres the problem…
broke

look at the way the dragger for the scrollbar moves position and goes all off…
i looked through the AS but only really found how i can change the _x value…

so i was wondering if anyone could help me enlarge the textfield and mask but keep the scrollbar working nicely as it used to.

FLA for the working copy is here

Mayan[/FONT]