Papervision - problem with over / out

hi

i’m on my first attempt to do a gallery using papervision 3d but it’s being tough.
if someone could help me, i would really appreciate it.

(i had to erase the url for some privacy issues)

as you can see here, my “over” isn’t working properly. the bottom label should switch on every OBJECT_OVER/OBJECT_OUT, but it’s not working(especially when i stop mooving the mouse)

i searched for lost of tutorials but i really can’t get it,… it seems “ok”

here’s a little bot of my code

            function itemOver(event:InteractiveScene3DEvent) { 
                    var thisNStr:String=event.currentTarget.name.charAt(5); 
                    if (event.currentTarget.name.length>5) { 
                            thisNStr+=event.currentTarget.name.charAt(6); 
                    } 
                    legenda_mc.legenda_txt.htmlText=unescape(infoXml[parseInt(thisNStr,10)].legenda.toString()); 
                    legenda_mc.legenda_txt.autoSize=TextFieldAutoSize.LEFT; 
                    legenda_mc.line_mc.width=40+legenda_mc.legenda_txt.width; 
                    legenda_mc.x=(stage.width-legenda_mc.width)/2; 
                    viewport.containerSprite.buttonMode=true; 
                    appearTween=new Tween(legenda_mc,'alpha',Regular.easeOut,0,1,4,false); 
            } 

thank you