I have a strange problem with IBM ThinkPad T20. When it runs only on battery everything is fine, also when it runs only on power adapter it is fine. But, when both battery and power adapter are connected laptop immediately crashes. Is there some solution to this problem? I am looking forward for your answer.
I can advise you only to download and install latest updates from Microsoft and additional software and drivers from IBM web site. I think that this started to happen to you after you did a fresh Windows XP install, right? If problem is not solved with this then I suggest you to call technical support and ask them if they know something about this problem.