Images load and shakes screen

Thanks for your response... the images are loaded dynamically through XML.

Here is the code for loading the thumbs... what section would I apply visibility to? Also, the smoothing, not sure where to apply it. I will look up bitMap.draw(), thanks.

// loadThumbnails

function loadThumbs(list:Array):Void {

    // set stage size

    setStageSize();

    // create holder

    var holderMC:MovieClip = createEmptyMovieClip("holder_MC", 1);

    // populate images

    for (var i:Number = 0; i<list.length; i++) {

        //attach item to the holder

        itemMC = holderMC.attachMovie("item_MC", "item_MC_"+i, i);

        // size of the loader panel

        itemMC.loader_MC.panel_MC._width = thumbWidth;

        itemMC.loader_MC.panel_MC._height = thumbHeight;

        // put thumbnail

        thumbMCL.loadClip(list.attributes.thumb,itemMC.loader_MC);       

        //item name

        itemMC.name = list.attributes.name;

        //thumb links

        itemMC.thumbLink = list.attributes.thumbLink;

        //item number

        itemMC.n = i;

        // events

        // over

        itemMC.onRollOver = function(){

            // fade in

            ZigoEngine.doTween(this.loader_MC, "_brightness", 0,1 ,"easeOutExpo");

            // tooltip if set to true

            if(showTooltip){

                tooltip(this.name);

            }

        }

        // out

        itemMC.onRollOut = itemMC.onReleaseOutside = function(){

            //fade out

            ZigoEngine.doTween(this.loader_MC, "_brightness", -50,1 ,"easeOutExpo");

            // remove tooltip

            removeTooltip();

        }

        // press

        itemMC.onRelease = function(){

            // if theres thumbLink

            // open link without zooming

            if(this.thumbLink != undefined){

                getURL(this.thumbLink, "_blank");               

            }else{

                // stop movement

                movingNav = false;

                //record last Stage Width and Height

                lastStageW = stageW;

                lastStageH = stageH;

                //zoom

                zoomIn(this);

            }

        }

        //put number if enumerates is set to true

        if(enumerates){

            itemMC.numero_TXT.text = (i + 1);

        }

        // type of sorting

        if(sortType == "v"){

            // Sort Vertical//

            // pos

            xPos = xIni+(thumbWidth+thumbMargin)*count;

            itemMC._x = xPos;

            itemMC._y = yPos;

            //change row if stage is shorter than row length

            if ((xPos + thumbWidth)>stageW) {

                //reset count

                count = 0;

                // reset xPos

                xPos = xIni;

                // change row

                yPos = yPos+thumbHeight+thumbMargin;

            } else {

                // inc count

                count++;

            }// if

        }else{

            // Sort Horizontal//

            // pos

            yPos = yIni+(thumbHeight+thumbMargin)*count;

            itemMC._x = xPos;

            itemMC._y = yPos;

            //change column if stage is shorter than column length

            if ((yPos + thumbHeight)>stageH) {

                //reset count

                count = 0;

                // reset xPos

                yPos = yIni;

                // change column

                xPos = xPos+thumbWidth+thumbMargin;

            } else {

                // inc count

                count++;

            }// if

        }// tpye of sorting

    }// for

    // put holder for loaded big image

    imageMC = createEmptyMovieClip("loader_MC", 2);

    //start moving only the first time

    if(!init){

        movingNav = true;       

    }

    //enter event for moving

    holderMC.onEnterFrame = moveNav;

    //then center

    center();

    // put fixed mas for holder

    // if s not set to full screen

    if(!fullScreen){

        setFixedMask();

    }

}