Hello, My laptop is: Dell Inspiron 1420 (I bought it in 2007) Windows Vista 32-bit preinstalled Intel Core 2 Duo, 2.00 GHz RAM 2.00 GB HD SATA 160 GB My problem is my computer restarts itself randomly. The computer worked fine for 18 months. This problem started the first time I tried to see a whole movie in it. The movie froze, I got a BSOD and the computer restarted itself. After that, It begun to restart itself randomly. So far, I've done several things. I've tried to uninstall Vista and Install XP and It didn't work After several tests, the only thing I've got is to identify a frequent behavior... That is: 1. Every single component in the copmputer is working OK -I can say that because of the Dell diagnostic utilities- 2. The problem is: The laptop restarts itself randomly -with a BSOD if Vista and without BSOD if XP- without any warnings or error messages 3. It happens as soon as Windows -Vista or XP SP2- completes the first step of its own installation process... I mean, when the first windows files and drivers are loaded -after the first normal restart due to the installation process- Beyond this, I've got nothing... I haven't figure the cause of the problem or any possible solution Could anybody help me? What can I do?