Hi. I have a laptop running XP Pro (SP1), and a desktop running W2000 Pro (SP4). I have a (working!) crossover cable connnecting the two NICs. I have the desktop NIC set up to use IP address 192.168.0.5 and the laptop to use IP address 192.168.0.4. Both NICs have file and printer sharing enabled. But when I try to map a share on one computer from the other, I can't get it to work (in either direction). It used to work when the laptop had W2000 with NetBEUI installed, but WinXP doesn't support that. I know I could install NetBEUI from the WinXP CD, but why doesn't the TCP/IP connection work? What have I missed? (I'm new to XP).