I've got my multiplicity setup so that it looks for my laptop's IP address everytime since the laptop uses wireless and gets its IP from the router's DHCP service. This works fine until I use VPN on my desktop machine. After which, the IP the desktop gets for the laptop name is always 192.168.1.254. It affects my ping as well. If I ping using my laptop's name, it thinks it's 192.168.1.254. But if I use the real IP address, it's fine. Repairing the desktop's LAN connection does not work. How do you delete the internal caching of machine names to IP addresses on WinXP? Is this MP's fault? I don't ever remember having this problem before.