how can i turn it on?

i just bought a samsung s1065 digital camera.i inserted the batteries and turned it on, but it only came up for a few seconds and went off again.i tried turning it on again and thesame thing happened.each time i turned it on, the monitor will come on and off almost immediately but in less than 10 seconds.
now the lens of the camera is out and it does not turn on.
what might be the problem.....