When I turn on my. When I turn on my Dimage E500, I get a blank black screen. I can review the old

Question

When I turn on my Dimage E500, I get a blank black screen. I can review the old pictures taken on my memory card through my camera with no problems. I just cant take new pictures and if I try the pictures come out black like the screen. I have changed my batteries and memory card but nothing has helped. Please help me.
Thank you
Nicole