Invisible margin within flex app

[gamesvilleIntern]

Hi,

I cannot figure out how to remove what appears to be an invisible 20px margin within my actionscript 3 application, written using flex builder. When I add movieclips and set x = 0, they appear about 20px over from the left hand side of the screen. If I set their x = -20, then they appear flush with the left side of the app. Is there any way to get around this/remove this margin?

In the attached picture, the green rectangle is at x = 0, yet it is not flush with the left hand side of the app.

Thanks,
Jeremy

[JeTSpice]

most-likely, there is a parent container which is set at x=20.

if you can post some code, someone may be able to find it.