I am in a big problem.. Plz help.. My system clock is slowing down continuously. What can be the problem?? Well, when I reset it to what the time is and as long as the computer runs the time does not slow down or anything.. But on shutting the PC, when I start it the next day or something it makes a progress of only a few hours when a whole day has passed.. Plz tell me what to do?? If its battery problem or not?? What should I do now??