Flash game not behaving once in Captivate

Question

Hello everyone,
I've recently built a drag and drop game (with targets and text response) in Flash CS5 using AS3 and when I test it in Flash it works exactly how I want it to.
Once I insert it into Captivate 5 and then preview the project in a web browser the game acts differently. When a student drags an object and then drops that object on a target the object should then change positions and it's new location should be where the target is...once in Captivate however the object makes a copy of itself as soon as the students drags it anywhere so you can see one object being dragged and one object still in its original position.
Can anyone suggest why this is?
Thanks!
A copy of the actionscript used can be seen below.
var objectoriginalX:Number;
var objectoriginalY:Number;
answer1_mc.buttonMode = true;
answer1_mc.addEventListener(MouseEvent.MOUSE_DOWN, pickupObject);
answer1_mc.addEventListener(MouseEvent.MOUSE_UP, dropObject);
answer2_mc.buttonMode = true;
answer2_mc.addEventListener(MouseEvent.MOUSE_DOWN, pickupObject);
answer2_mc.addEventListener(MouseEvent.MOUSE_UP, dropObject);
function pickupObject(event:MouseEvent):void {
event.target.startDrag(true);
event.target.parent.addChild(event.target);
objectoriginalX = event.target.x;
objectoriginalY = event.target.y;
response_txt.text = " ";
function dropObject(event:MouseEvent):void {
event.target.stopDrag();
var matchingTargetName:String = "target" + event.target.name;
var matchingTarget:DisplayObject = getChildByName(matchingTargetName);
if (event.target.dropTarget != null && event.target.dropTarget.parent == matchingTarget){
event.target.removeEventListener(MouseEvent.MOUSE_DOWN, pickupObject);
event.target.removeEventListener(MouseEvent.MOUSE_UP, dropObject);
event.target.buttonMode = false;
event.target.x = matchingTarget.x;
event.target.y = matchingTarget.y;
response_txt.text = "You did it!";
} else {
event.target.x = objectoriginalX;
event.target.y = objectoriginalY;
response_txt.text = "Not quite";

Answer 1

I'm having the same problem but adding this._lockroot = true isn't working.
I'm adding an old sfw (flash player 6, AS1) to captivate 4. This flash file has a drag and drop activity and has this clip even on the root level.
onClipEvent (enterFrame)
    if (_root.currAns == 6)
        allDone = 1;
        _root.currAns = _root.currAns + 1;
    } // end if
    if (allDone == 1)
        if (_root.correct._currentframe == 1)
            _root.congrats.gotoAndPlay(2);
            allDone = 0;
        } // end if
    } // end if
I tried changing the _root to this. but that didn't work either.
This is driving me crazy so if anybody knows a quick fix i would love to hear from you.
thanks