Deleted/Missing Components causing problems
Got this from one of the Lockergnome forums....seems to be a problem with XP and Windows Server 2003, especially in the networking componets area.Problem: You have deleted a netword adapter/upgraded motherboards, and now you get IP Address conflicts with the "phantom" adapter -- and you can't find it in Device Manager to delete it!
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Solution: Either open a command prompt (Start -> Run -> CMD
set DEVMGR_SHOW_NONPRESENT_DEVICES=1
devmgmt.msc
exit
If you saved the file run it, or, if you typed the commands, the Device Manager should appear. Click on View -> Show Hidden Devices.You should now have a device manager which shows all of the hardware ever detected on your system.
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Delete the offending devices, reboot, and you should be ready to go!
Here are two MSKB articles on missing network components:
http://support.microsoft.com/kb/269019
http://support.microsoft.com/?id=825826