Hmm, I tried the fix from the article, but there is no change. Very interesting though, I didn't know that about XP. As far as the firewall is concerned, I am only running Windows Firewall on all the machines, I have also tried to disable it without change. As far as I am aware, Windows Firewall is designed to easily allow for sharing. In relation to the antivirus software. On both the windows 7 and XP I am using AVG. I cannot see this being the issue because I can connect to the Win7 from both Vista Machines. Am I off base there?