[flexcoders] custome list scroller issue

[j2me_soul]

I create a custom Scroller Skin all code designed by flash catalyst.
My computer has two monitor when I drag the application to the other monitor 
then switch to full screen,
the list controller is still display as that monitor resolution.
If I use the default list scroller the trouble is gone, the list adjust his 
content to the monistor.
How can I make the custome scroller skin has the same ability as the default 
scroller.