strange behavior, camera doesnt work

surely i’m missing something stupid, but when I hit ‘0’ to get a camera view i see nothing; nor when I render it, nor even when I try to render a viewport in wich i see my model.

I got blender 2.44, lights in my scene, a cam Ctrl-tied to an empty.

to add further features, when i render a view (and get nothing), afterwards the model shows deformed and the system jumped to a different frame.

any clues? help plz

Maybe you have the same problem that I got.

Select your camera and press ctrl+0. Maybe that could work.