size and position of my frames

I have specified a stage size of 800x600, and put all my frames in a
s:Group with a width and height of 100% and top left = 0. The same
applies to all the frames that are inside the s:Group.

But when I display my .swf, it has 20 pixels of whitespace at the top,
and is at least 1042 pixels wide (that's where the black area ends).

I've attached the code and the swf.