My Dimage F100 does not work with the power adapter. The green LED blinks and the camera doesn't work. The LCD does not light up and none of the buttons work. The camera works perfectly if I use the battery. I used generic power adapter before and it worked for a while before it quited. So, I bought the original power adapter made by Minolta. Again, it worked for a while before it quited. Is it the problem with the power adapter or what? How come they broke so quickly? Is there anything that can be done to fix this?