The following two SQL Exceptions are popping up after several days or weeks of seemingly smooth execution: "Unknown Response Type x" <= where x is a random ASCII character and "The column index is out of range" Once one of these two SQL Exceptions start occurring, pretty much all queries afterwards produce the same error and I have to restart the web application and/or postmaster. Can anyone shed any light on these and what may be causing them? RedHat Linux 6.2 PostgreSQL 6.5.2 The web app is Java Servlets & JSP w/JDBC & with a basic connection pool implementation Thanks, -Robin