i have 3 computer all running win xp(2 on pro and 1 in home ed) i keep on changing the ip add. and somehow the in the end, it doesn't the other computer anymore. all are enable in file and printer sharing, guest user are disable and all have no password in it. but funny thing is when i reformat the home ed, and setup again the network on it, it works finally. my question is, do i have to reformat the other computer or is there way around it ? i tried snetwork wizard, and all are automatic ip add. assign. i have firewall but i set to allow the network to operate