I have been using Vista business for about a year and a half now. I know I've used Limewire on my machine before, but recently, I noticed that that I kept getting the connecting message that alot of you mentioned and it would never connect. I don't use Mcafee, so I knew that wasn't the problem. I use symantec, windows defender and windows firewall. I disabled all of those services(including security center) and I still had the same problem. I downloaded the reccomended java version, still no change. As a matter of fact I tried everything I saw that was applicable to my setup and nothing changed. Then I went to the sticky for people having issues trying to connect and having issues located here:

http://www.gnutellaforums.com/connec...t-connect.html

and tried the very first step, download gnutella.net and delete the old file and put the new file in my folder. As soon as I started limewire I was connected with 4 bars!

Hope this helps!

Rodge