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I have a Dell Latitude D600 laptop that I have just started to have problems with. It has worked great up until a couple of days ago. It started out shutting down unexpectedly once or twice a day and yesterday the problem increased an was doing it after the computer had been on anywhere between five and fifteen minutes. Then today I went to turn it on and it wont. The light the showed that the ac corded is plugged in does not even light up. I tried unplugging the ac cord and trying again but the same problem. I also notice that the light on the ac adapter is lite up until I try to pull it into the computer. I hope this is making since (I do not no a whole lot about computers but I tried to explain the problem the best I could) Also the fan seems to be working. However maybe not as well as it needs to. Thank you for reading my posting and any help you may be able to give me