My Fujifilm S20 Pro has developed an issue with the viewfinder and the LCD screen. The view finder is completely black and the screen has a large green "glob" in the middle. It will not hold the picture for more than a second. I took it to the camera store and they said that the aperture sensor is bad and the repair will be aprox. $250-$350 or to buy a new one. Please help! Thankyou.

Cameras - Fuji - FinePix - FinePix S20 Pro Digital Camera