What's wrong w/ this button script?

[eric@elcmedia.com]

on(press) {
textField.scroll += 1;
if (press = True) {
textField.scroll ++;
}

}

I have this on a down button that controls text in a dynamic text
field. It only scrolls down one line at a time when you click it (as
you can see) but I want it so that if the mouse button is held down it
will automatically scroll more than just a single line. Any ideas?
Thank you.

[eric@elcmedia.com]

Well I have managed to get text on one MC to scroll when the mouse
hovers over the "down" button (It's actually a MC). The problem is I
have two movie clips, each with dynamic text fields, inside another
movie clip. When I added the second MC with text it worked, but
suddenly the first MC with text no longer worked! Agh!
Here is my code for the MC that follows the mouse (mouseFollower):

onClipEvent (load) {
this.startDrag(true);
this._visible = false;
}

And here is the code for the down MC (and similar for the up MC):

onClipEvent (enterFrame) {
if(hitTest(_parent.mouseFollower)){
_parent.scrollText_txt.scroll +=1;
}
}

The text fields in each MC are called scrollText_txt
Any idea why adding another MC with dynamic text would make the first
one stop working? I have tried changing the names of the text fields
and the hover MC but so far nothing works.