I\'m getting an intermittent crash using Storyboards in iOS 5. Every so often, I get a SIGABRT when I try to instantiate a new object with a view controller from my Storyboard.
Open your .xib file for this controller and right click on "File Owner" and check if you have connected any wrong property or outlets. You will find a small yellow icon on the right side of outlet if it is a wrong one. Just remove that and try.