I am defining some triggers in Postgres 6.4.2 on Solaris 2.6, but when the trigger is set off, I get an error: ERROR: stat failed on file ${exec_prefix}/lib/plpgsql.so the permissions are 644 on above file. I have added the language to the database. Can you give me any suggestions? I would rather not upgrade at this point - It is working so well! Marc Wrubleski