Set zoomScale on subView of ScrollableView

Hello,

I'm coding an application for iPad, using titanium mobile 1.7.5.

I have a scrollableView filled with 50+ images.

var scrollV = Titanium.UI.createScrollableView({
    cacheSize:3,
    center:{x:512,y:384},
    maxZoomScale:2,
    minZoomScale:1,
    width:1024,
    height:768,
    zIndex:1
});

I've tried to set zoomScale of the view to 1, zoomScale to the scrollableView to 1... nothing seems to work.

Does anyone have an idea ?

Thanks !