I have a HP Pavillion DV1000. Since last 2 days, it is giving me starting problem. When it does not start, then i remove the battery out and then put it again, repeat this process several times and sometimes that works. I have 2 batteries, sometimes i keep changing on batteries and that also works. My both batteries are working fine, the only issue is laptop does not start by pressing the 'on' button the first time. Once the laptop starts, then it will not shut down till i give shut down command. What can be the problem?