I have a Fujitsu Siemens Lifebook E4010 and recently it has started randomly shuting down and I've found it very difficult to start and it's got to the point where it is pretty much not functioning in the sense of being able to use it. I was given it and it was already second hand at that point so I am not sure how old it is and I was wondering if it could be the battery that needs replacing. I would be very grateful for any help in this matter. Thanks Jeff