CameraView not shown after the first time on IOS App

[fbartolom]

I have an app showing overlay objects over a cameraView using a tab-bar controller for its navigation. When I first open the application, the cameraView correctly shows everything that is in front of the camera, yet when I move to another tab and return back to the cameraView all overlay objects get regularly shown but the camera view is just shown while in landscape mode; in portrait mode there appears the closed curtain instead and there remans forever. This problem just surfaced with IOS 5 when it finally allowed the camera view to span the full landscape view and so I suspect this problem could be a lingering bug of the new release. In any event this event seems to happen outside my objective C code.

Has anybody some ideas on what it could be and how to solve it?

Thanks, Fabrizio Bartolomucci