http://blogs.technet.com/toml/archive/2008/08/05/locking-down-annotations-in-ocs-meetings.aspxThis question came from our MVP's regarding the ability to prevent attendees from marking up the presentation. The presenter can do this in the following dialog. In the Attendees panel, select Permissions -en-USCommunityServer 2.1 SP1 (Build: 61025.2)