I'm running Windows Vista on my fairly new Dell Inspiron 1501 laptop. For a couple of months now, it's been refusing to shutdown. I click shut down in the Start menu, and then it takes me to the "Shutting down..." screen, where it stays forever. I wind up having to manual press the shutdown/startup button. I did a quick Google search, and the first site was talking about some sort of problem with Nvidia drivers, which I do not have. So, halp.