Why Is My Snapshot Smaller Than The Webcam?

Question

I am trying to make a snapshot of the users webcam, but the snapshot is 1/4 the size of the running webcam and doesn't fill the bitmap data section. Also is there a better way I can Add and position the snapshot.?
import flash.display.BitmapData;
import flash.display.DisplayObject;
var bandwidth:int = 0; // Specifies the maximum amount of bandwidth that the current outgoing video feed can use, in bytes per second. To specify that Flash Player video can use as much bandwidth as needed to maintain the value of quality , pass 0 for bandwidth . The default value is 16384.
var quality:int = 100; // this value is 0-100 with 1 being the lowest quality. Pass 0 if you want the quality to vary to keep better framerates
var cam:Camera = Camera.getCamera();
cam.setQuality(bandwidth, quality);
cam.setMode(320,240,30,false); // setMode(videoWidth, videoHeight, video fps, favor area)
video_vobj.attachCamera(cam);
stage.addEventListener(MouseEvent.CLICK, takephoto);
var screenS:BitmapData = new BitmapData(320, 240, true, 0xCCCCCCCC);
var screenS_image:Bitmap=new Bitmap(screenS);
function takephoto(e:MouseEvent):void
screenS.draw(video_vobj) ;
addChild(screenS_image) ;
screenS_image.x = 360;
screenS_image.y = 20;

Answer 1

OK…I purchased and downloaded Elements 9.0 for my MACs ( I have two in two different locations).  I installed on both and the brushes work as expected on one of them but not the other.  Guess that is why I asked about a reinstall….possibly something went wrong on this computer when installed.
I am just trying to create an image for a background paper and have selected a brush.  I resize it with the bracket key (and have also tried resizing with the slider on the menu up top).  I hover the brush over the area I want to place it and then click.  The brush is smaller than the hover image every time.   Makes it hard to know where to lace my brush for proper placement.  As far as the percentage…..that actually is a guesstimate, but it isn't 50% smaller that's for sure.
Eileen