My internet has been working fine all along but the other day when I turned on my laptop (which runs on Vista), it could not locate any networks. I did the troubleshooting thing and it said that I didn't have any network devices installed, but I hadn't deleted or changed anything from the previous day. Still, I did a system restore, and it didn't change anything. Internet works fine on other computers and my iPod touch. I compared network adapter devices to the working computer and found that my laptop was missing the Broadcom Wi-Fi Adapter, so I went and installed that, but it still doesn't work. Any suggestions?