Rotation behaving differently on iOS6

Question

I did an App which is tab-based. Nothing needs to be on landscape mode but a couple of views. It worked OK on iOS5 and I was pretty happy with the result. However with iOS6

Answer 1

Are you setting the rootViewController in the delegate? For example,

    self.window.rootViewController = self.navigationController;

When I was doing some iOS6 testing it wouldn't work properly until I did that...