Hi, ACE View v1.3.0 is now available from http://attempto.ifi.uzh.ch/aceview/. Compared to ACE View 1.2.x there are few new features, most of the changes are there to make ACE View compatible with Protege 4.1. See the release notes at: http://aceview.googlecode.com/svn/trunk/RELEASE_NOTES.html -- kaarel