This is the famous little setting that is normally done on a laptop or desktop. ATA Mode for Windows XP and ACHI Mode for Windows Vista. Well, bless those modes, I had to use ATA mode for the setup in my new Dell Inspiron with Vista Business otherwise, I will see blue screen almost 2-3 times a week with ACHI mode. And the default setting for flash cache module is set as enabled. Guess what, I had to disable it. And till today, no blue screen. Perhaps someone has any idea how this can happen. It was just a WILD GUESS and it saved my life. I did highlight this to Dell Support and the guy kinda went blur. So I guess its a little secret or "mishap" on Dell machines.