On my win2k server at work, about 50 pc's are added to the active dir. when I turn some off and ping their netbios name.

For example:
ping my-computer

it trys to ping using 192.168.16.13
but that's the ip when I joined the domain.
I'm currently using 192.168.16.55

What's the deal ? Why is it remembering this address and why isn't it checking the intranet for the new ip.

I tried: ipconfig /flushdns ...nothing