I have a PC Intel Pentium 150 Windows 95. he clock has been working accurately since early november. Suddenly the last three days the clock stops the moment the computer is turned off and on restarting shows the time the computer was turned off. That does not sound like a battery problem as I do believe the clock would revert to some default time and also I would lose my settings in BIOS. Ichecked the time in DOS on startup and it is the same so it is not a Windows problem. Can,t find any settings in BIOS that affect the clock.