Found this in the ladb log file.

Any idea what this is?

Tue Jun 26 13:42:20 2007: .....Drain Ended, Additional Info (-1).
Driver failed with CDBProgram::SetUp() failed
DBConnect.Connect() failed
COraDBConnection::Connect: Received OCI_ERROR while initializing pHOciEnv
Tue Jun 26 13:51:27 2007: ladb (ProcessDeath): Foreign 150 died, pid 4378646

DBConnect was unable to start a thread on your remote DB2 database momentarily.

It could have been a minor network hiccup.