UIScrollbar does not appear

Hi folks,

Need some help. I have just gone through a tutorial in displaying external data in flash.

(http://www.kirupa.com/developer/mx/dynamic_scroller.htm)

Problem is the scroller does not appear fully. It appears as a thin grey line.
If i click somewhere close to that grey line the text scrolls (but that is by luck!). I cannot even see the scroll up and down arrows.

I do not think the tutorial has missed anything out as I have used other scrolling text tuitorials on other sites and the same problem occurs.

Getting kinda desperate with a deadline looming!!

Many thanks

mac