My old 2400c/G3 320 ran for two years and was used every day for at least four hours, never had a GLOD, but I also never put it to sleep when I was done with it. I always shut it down. I believe it is still running, as I sold it to a list member! Tom > > I see... maybe upgrading is not the link. > > How about useage? My 2400c has not seen much; and I never put any of my > laptops to sleep for any extended periods... maybe it is a cooling issue?