Tell us if you replaced it.
Friend of mine started getting this message on his older Dell computer running Windows XP - "Invalid date, strike F2 for setup adjustment." He rebooted, hit F2 and reset the date but after a day or two the message comes back. When this error occurs the year date will change to a prior year such as 2003 or 2005. He has run antivirus and anti spyware scans but no problem was detected. Also, the computer slows down considerably when he gets the message - don't know if the slowness is related to the invalid date or not. Will appreciate an advice anyone can give. Thanks!