screen problem unable to see picture.

screen problem unable to see picture.

hi this camera has been faultless upto yesterday. The camera turns on and I can see all pictures that I have taken. But when I turn it to take a picture mode I get up all the normal icons a light grey screen but no image. If I take a picture I get a grey screen shot.thought it was the lcd screen but, surely I would not be able to view previously taken pictures on a faulty screen. any help?. quite like this camera so would like to fix her.