Greetings. After my actual computer went down due to HDD issues, I decided to restore an aging HP pavilion I had lying around. It was full of junk and the registry was messed up, so I ran HP's system restore and got it to fully functional status. The internet was fine, and I was able to clean most of the system off with Avast!. However, when I was removing the old anti-virus I had on there, Norton, it asked me to restart my computer. When I did so, the internet did not work. I checked the drivers, the IP and DNS, and the DHCP, but they all seem to be fine. By rights, the internet should be working fine. However, Firefox refuses to connect, and online apps that I have, such as Xfire and MSN Messenger are not functional. I've checked the cables and they work fine. Also, the laptop I am typing on now which is hooked into the same router is fully operational. If anyone has any ideas as to why the internet would suddenly stop working, I'd appreciate the tips.
Operating System: Windows XP
RAM: 512 Mb
Computer Model: HP Pavilion a530n