iOS UIScrollView not passing touch events?

[ipdev]

Hi,

I've got a simple project (using interface builder) with the following views:

Window
..View Controller
....View1
......ScrollView
........View2
..........ImageView (a large image)
..........View3
..........View4

Scrolling works great, but for some reason, the view controller never receives touch events if I touch view3 or view4.

If I remove View1, (so scrollView now becomes the viewController's view), I receive events for view3 and view4, but not if view1 is the view...

userInteractionEnable is set to YES on all the views.

Any ideas?

Thanks!