Anyone know why I can't change a WINXP computer from workgroup and place it in a domain ? I created a computer account in AD on the WIN2K server, I can ping the WINXP from the server, and I'm logged on as administrator on the WINXP machine. I have two other WINXP machines already in the domain (they were like this when I began administration on this network), why I can't place a new WINXP machine on this network is a mystery to me. Any help is appreciated - thanks.