Hi Helen... not sure if this will help, I have a Fuji S7000, for turning off the start up sound and shutter sound. Turn the control dial to SET then turn the camera on (red icon on the shutter dial) the screen shows settings... look for "BLEEP" and "SHUTTER" when you select these you can use the left/right arrows on the menu outer ring to increase/ decrease and turn off sounds.
Pete, November 2006