Hi, I hope someone can help me with this issue that I'm having trying to get my Windows 7 Ultimate and XP Pro machines to talk to each other. I am suspecting that it might have something to do with ESS settings but I'm not sure what. Currently, from XP to Win7, I can: 1. Start --> Run --> \\win7machine, and it comes up. 2. Ping the Win7 machine But I cannot: 1. Remote Desktop Connection into the Win7 machine. I have RDP 7 on the XP box and all settings seem to be correct. From the Win7 box to XP, I can: 1. Do an NBTSTAT -r, and my XP box shows up in the list. But I cannot: 1. Ping the XP box. Comes back with "ping request could not find host..." 2. Start --> Run --> \\xpmachine. It doesn't find it. 3. Remote Desktop into the XP box. Can't find it. RDP traffic is set to be allowed in ESS. Turning ESS's firewall off doesn't help. I have tried for hours now to get this to work, and finally am waving the white flag. Need some help! Thanks.