I had cleared out the message logs from the server before I did the ZCM11.1a upgrade. But after the upgrade the logs seem to be back and now it seems like I can't delete them. Is there an easy way to purge that area of the database or log file location so that the message logs will clear out or at least allow me to delete them from ZCC?

Otherwise the 11.1a upgrade was the smoothest upgrade I have had with any of the versions of ZCM since I started with it on 10.1.