title: UIButton touch is not respoding in xcode 4.5 in objective c
body: <p>I have created a project in xcode 4.3 with development target 5.1. Now i want to update my app for iphone 5. I have just run the code in xcode 4.5, It compiled and run successfully but some of the buttons on top and bottom of the screen are not responding any touch event.</p>