You probably need to turn persistent connections off in the config file. Take a look at config.inc.php and turn the $config[persisten] variable off and this should get rid of the open connections.
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.
