Using SBS 2003 R2 Premium. EVERYTHING is working flawlessly. When I set up remote clients for RPC on a CLEAN copy of WinXP and and CLEAN Office 2003 I have no problems. When I set up remote clients that already have a copy of Office 03 that they have been using I keep getting errors saying name can't be matched to a name in the address list. OWA works fine. POP works for receiving but not sending. I have other users that are remotely accessing the server with Entourage on OSX with no problems.