shared_preload_libraries error message

This is a new error message. I have been using 1.10.0 (jun 29 2009, rev: 7942:7934M) for a number of weeks now, and I
amjust now seeing this error message. It only occurs the first time I ask the see a function. After that (even for
otherfunctions) it does not happen.<br /><br />The server is Postgres 8.1.9, under Linux 3.2.3-58.<br /><br /><br
/>2009-07-2008:14:09 STATUS : Retrieving Function details...<br />2009-07-20 08:14:09 STATUS : Retrieving Function
details...(0.00 secs)<br />2009-07-20 08:14:09 QUERY  : Scalar query (<a
href="http://tgcdb.teragrid.org:5432">tgcdb.teragrid.org:5432</a>):SHOW shared_preload_libraries;<br /> 2009-07-20
08:14:09ERROR  : ERROR:  unrecognized configuration parameter "shared_preload_libraries"<br /><br /><br />