at the moment i only have two computers connected up as a LAN, this didnt happen with SP1. When Sp2 booted up the first time after runoncex, etc, the LAN icon was sitting there trying to configure an IP address on its own and couldnt, there is also one other note, when XP was installing it gave me an error saying that i had another computer with the same netowrk name, but i changed that later and still had the ip problem, could this be the reason??