Had DNS running on two servers. Both domain controllers. One was my SQL 2005 server(was told to remove DNS and Domain Controller roll because of upgrade to SQL and or Accounting software (Dynamics Great Plains 10.0) and the other was running Print server, DHCP Server and file server (this one is my oldest server Pentium 3). I have a seperate Exchange 2003 & SQL Servers. I recently baught a new dual quad core zeon server with raid 5. I added DHCP and DNS to my new server and removed DNS from the SQL Server, and then removed DHCP from my old file server. It all seems to work, but the network (on a gigabyte back bone with 2 by 6 MB cable internet) seems to run extremely slow. I am also using a Harware firewall/VPN device made by WatchGuard).