Help!!! My other computer (Windows XP Pro SP2) is having problems connecting to the Internet or any other applications using a URL. I can still connect if I use an IP Address. My Antivirus software can't update it's definition files, and pretty much anything that needs to connect to the Internet won't work. It's been like that for a while, so I'm not sure what caused it, and I'm finally getting around to fixing it. My other computers, on the same home network work fine. I'm new at this, so tell me what other information I need to provide.