My week old Inspiron 1545 doesn't want to connect to the Internet. I am on a cable modem with Charter, a company that provides dynamic IP addresses. The laptop fails to recognize the connect (even though my other PC does, so there is no problem with modem or cable). I have Win 7. I spent the first day on the phone to Dell, and they had no solution. In frustration, I reversed the cable on the modem, rebooted, and voila, I was able to connect, the laptop sensed the connection immediately. Ran great for a couple of days, but when I made the mistake of re-connecting my PC, I have not been able to get the laptop back on. Is this a Win 7 issue (seems to insist on a password/username environment which Charter doesn't need)?