[sonyexpress]

I have had a Sony a200 for about a year or so with no problem, but over Christmas it developed a very noisy vibration whenever it was switched on or had a fresh battery inserted. Also for some reason the viewfinder and the finished photo are out of line and I have to aim low and left with the viewfinder to get the subject central in the photo.
Am I doing something wrong, or have I changed some setting unwittingly, or does the camera need some sort of repair?
Any help would be appreciated.
Many thanks.