I'm sorry to hear about this problem. I assume it has been doing this from out of the box, correct? What have you tried to fix it? Have you tried pressing the button with a large play icon on it? It's on the bottom left of your camera controls.
I have a Samsung Smart camera WB850F and after I take a Picture, it Shows the Picture I took, but will not return to camera mode, even though I have 16gb left on my Card. It does not save the Picture either.