I'm posting this for my roommate, which has had some trouble lately. "I just installed a new 80 gb Seagate barracuda 7200rpm 8 mb cache. I formatted my old hdd and set it as my slave. I just installed Windows XP Pro on the Seagate. Upon installing I dl'ed a few Windows Updates, and installed Norton Systemworks 2003 Professional. However, when I attempt to load Norton, it will load up for only a few seconds, and then it will simply shut itself down. And now when I try to install new Windows Updates, such as SP1, it will say its extracting files, and then when its about to install the actual update, it just shuts itself down. I have never heard of this happening, and was wondering if there is a solution other than formatting and reinstalling Windows. I never had problems with Windows or the Norton software when it was running on the previous WD 40 gb hd."