I just upgraded 15 older iMacs running OS X 10.4.11 to all new iMacs running OS X 10.5.5 and now when we transfer files to to server or when we get files from the server it is painfully slow.. A 1GB file usually takes less then a minute to copy to and from the server (Running Server 2003 R2 fully updated with AppleTalk enabled) Now with Leopard it takes about 20 minutes or more. I checked the network settings for both machines and they are the same with Apple talk enabled. And it is also the same if I connect to the server via AFP or SMB.... Need help on this!!