I'm trying to network 4 computers all using Windows XP. Computers 1, 2, and 3 are connected by cable to a netgear wireless B router while computer 4 is connected via a netgear USB wireless card. Computers 1, 2 and 3 have no problem with the internet or networking with each other but they cannot see the wireless computer and the wireless computer can't see anything but the internet. The wireless system, computer 4, is using 64 bit WEP encryption and is close enough to the router/transmitter to have a strong signal. I've turned off the XP and Symantec firewalls on number 4 so there is no firewall operating. Computers 1, 2 and 3 have Zone Alarm firewalls and I've tried turning them off with no success. I've tried the XP networking wizard on all the machines. Anyone have any suggestions?