After the error message does it take you to the system clock setting? My IBM 600e is doing this...someone said I need to replace the CMOS battery they are only 10-20 bucks. I'm going to try it, but haven't yet. Here is a link to an online store that has them for most IBM models http://www.batteries.com/drilldown_model.asp?mfgdsc=IBM&mfgcode=IBM&name=Laptop+Computer&grp=LAPT&filtercode=&IMAGE1.x=25&IMAGE1.y=5
Peace,
Danielle
Danielle, October 2005