About the A line thing folks... that is the update process finding all those hidden corrupted threads that used to be living in your UBB. Usually you will want to delete them. Gotta get all those old messy files out.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.