if mouse-cursor is above the image and you're zooming via mousewheel, the imagebutton does not adjust its postion but keeps at initial pos.
if mouse-cursort is beside the image, adjusting of button-pos works until cursor and image-boundary are intersecting.
keeping cursor at the screen-edge and zooming, everything works fine.
any hints to avoid this behaviour of stucking button-pos?
i think it affects every gallery - if not you can check behaviour on http://www.catching-moments.net/2.0
thanks!