I used Hamachi today to play Warcraft 3 in LAN with my friends for the first time. After playing for 1 minute or so, the game starts lagging and couple seconds later I was disconnected. I tried 3 times and the same thing happened every time. I am using the latest version of Hamachi and am using Vista Ultimate 64-bit and Norton Internet Security 07. Anybody has an idea of why? Is it because of the Vista or because of my Internet speed or my firewall?