I have question. All user's PCs are getting IP addresses from DHCP (in windows 2003 environment). From user's pc, i use ipconfig /all and it shows 4 DNS server IP in order. Two of them are old external DNS server Ip addresses. I already changed these two old DNS Ip addresses with the new ip addresses in our DNS server (in tcp/ip setting tabs) and also in DHCP server. However when I use ipconfig /all from user pc, it still shows two old dns addresses. I also did ipconfig /flushdns but still show the same. Does anybody know why?