Sending view to back

When I try to send a view to the back, it hides some of the buttons and labels in my view controller. The view I am sending to the back is a UIImageView. Does anyone have an opinion of what might be the problem?

Here is the code I am using:

UIImage *image = [UIImage imageNamed: @"background.jpg"];
UIImageView *backImage = [[UIImageView alloc] initWithImage: image];
[self.view addSubview: backImage];
[self.view sendSubviewToBack: backImage];

Then, when I am adding controls to self.view, they does not always show

I managed to get it roght by moving my code from init to loadView. I don't understand why that should make a difference, but hey.. it works!