Hi
I had problems too,where the camera would turn on, but would show a blank screen. This was preceded by several months of intermittant odd behaviour, eg zoom not working, not being able to scroll through pictures etc. All unfortunately just occurred outside waranty. A friend had similar problems, and has sent it back twice for repair under waranty(which would have cost a minimum of €200 in repairs if she had to pay for it herself). It's a pity, because the camera took excellent pics. Faced with a potentially large repair bill (like yourself), I figured it might work out cheaper to buy a newer, higher spec camera, for less that what I originally paid for the cyber-shot..Might work out cheaper to get a new camera,esp if anything else went wrong with it in the future..
Nic