I built a computer and installed Windows 2000. Everything was working fine until I installed the NWlink IPX protocol. All of a sudden, no icons would move; I couldn't copy or paste; the control panel was displayed improperly and the add/remove programs console was messed up. I erroneously believed I needed the ipx protocol to network to my XP comp. I formatted the drive, reinstalled windows 2000, and put any protocol on that I wanted EXCEPT the IPX. Everything's fine now, my comp's can talk to each other and the icons are moveable, the control panel's normal, and everything is as it should be.