Well i had this old computer which the time was stilll in april 2007 everytime i restarted it. Even though i reset the time it always goes back to 2007 when i restart or shut down the computer.During startup it was said that the CMOS battery was low.Is the CMOS battery responsible for this?If i just pluck out the battery and change it,will it be ok?Or do i have to do something to the bios.