I am not able to capture a still image of a moving fan. I have the Nikon P100. I am only able to do it in manual mode with shutter speed 1/100 or less, with flash ON. If i turn off the flash the image is very dark even though there's good back-lighting. In auto mode or any other mode , am not able to take the image(still). My other basic camera, Olympus fe3010 is able to capture the still image of the moving fan perfectly in auto mode (has no other modes lol..). Am i doing something wrong ? Suggest pls.