Have you tried rebooting your server? It seems like that might refresh that information. Failing that, you might try clearing the user caches (User Rosters seems particularly suspect)
That's actually the way that our LDAP integration currently works, which means that all those users were actually imported into the system. There are two ways to get rid of them: delete all the users you don't want or stop your app server, delete the existing database and set 'setup' to true in the file jive_startup.xml and then restart your app server (effectively you're re-installing).
In version 1.7, we've made some improvements to the LDAP setup process so that you can either specify that you want to use LDAP groups (which means we'll import all the users that match the baseDN you specify) or that you want to use Clearspace groups (which means we'll only import users as they login to Clearspace).
Thanks AJ, that did the trick.
In version 1.7 you indicate that LDAP will be handled with Clearspace groups as well as LDAP groups. Will the clearspace groups be dynamic? Meaning will the licence(s) be able to be shared between mulitple users with a cap on the number of users able to sign onto the server at any given time?