I am trying to fix my mothers laptop. She has a zt3000 running XP. My problem is that my system clock wont stay set. It causing my web broswer to display " theres a problem with this sites web certificates. I need to fix this asap. I've already tried checking and unchecking the daylight savings box. I want to try to change up somethings in my BIOS. I dont know how to access it. When this computer boots it gives you the option F1O which is rom based setup. I went in it to see if there was something relevent to my system clock, but I didnt see anything. With that said, sometimes it takes this laptop 15-20 mins to boot. When it boots right up I get this message...the time and date on this computer is not correct.....something along that nature..but i click ok and the computer boots right up. I get this messge at the welcome screen.On the other hand when it takes forever to boot it will freeze on the welcome screen but right before the welcome screen pops up i get a beeping sound.HELP!