Posted this yesterday on helproom forum with no response so would be very grateful if anyone can offer any help. My brother has a simple home network set up - two pc's connected using ethernet crossover cable. First machine running XPPro, cable broadband, printer attached, Sygate Personal Firewall (free version) loaded. Second machine running ME. XP machine is fine, can share files OK with ME machine. However the ME machine cannot see or share with XP machine, nor use it's printer. It can, however, access internet OK. I have configured Sygate "Network Neighbourhood" to allow browsing and sharing on the local network adaptor, and have created an "advanced rule" to allow all traffic in both directions, all ip addresses, all ports and protocols, all applications for the local adaptor. Still no joy!! Where do I go from here? I am on the point of giving up and trying Zone Alarm, which I believe allows you to set up LAN's in a trusted zone. Definitely a firewall problem, all is fine if I turn off Sygate.