My kids have a 1501 Dell Inspiron laptop. My daughter's stopped charging. So I purchased a new battery. The computer worked as long as the life of the batter lasted, so I knew that it had to be the charger that wasn't working, also. I purchased a new charger and hooked everything up hoping that it would just start working and unfortunately, the computer is still dead. Should I just leave it in to charge and check back later, or could there be another problem with the computer?