I bought a new comp which came with Vista and Norton Internet Security 2007.1

Limewire wouldn't connect and, by a process of elimination, I narrowed it down to the Norton Firewall. I had Limewire set for full access in the program control and I could get a connection but nothing would download.

After checking here I contacted Norton customer support. In addition to allowing full access to Limewire, you also need to set Microsoft Internet Explorer and Microsoft Generic Host to full access.

It worked for me, hope it helps someone else out too!

HP m8020n
Windows Vista Premium
Dual Core Intel 2.13GHz
2GB RAM
600 GB Hard Drive
Linksys Router
Cable ISP
Norton Internet Security 2007.1