We recently installed a new Citrix server with Metaframe XP on our network. Our 3 other Citrix servers are Metaframe 1.8. We are planning to migrate them to XP once we have everything up and running. The problem we are having is that if the ica browser service is running on the XP server, people are not able to connect on the 1.8 servers using published applications. Once we disable the ica browser service on the XP server, they are able to connect again. Is there a setting somewhere that should be tweaked in order for XP and 1.8 to interoperate?