I have Windows XP SP2 and I been trying to download but nothing happens. Wednesday was all working fine. Yet I see a brick in front of a wall but checked in my control panel about firewalls and is working enabling LimeWire and I been getting a message that says that I'm not connected to the internet or I have a firewall. But I have done nothing to my computer and wednesday everything was working fine.By the way myversion of Norton Antivirus does not have firewalls.