Large jpg getting cut off at 2880

I have large JPGs or PNGs which ever suits you…and they seem to be getting cut off at 2880 pixels wide…all of my jpegs are 3360 x 2160 and obviously the width is the problem…using the loadMovie method does not work…it cuts off at 2880…using movieClipLoader with loadClip does the same thing…any ideas of how I can fix this or a workaround?