Received OCI-21500 when executing "SELECT * FROM ALL_SCHEDULER_JOB_DETAILS" from SQL Window in PL/SQL Developer (7.1.2.1.1363 01.36699). Same query returned correctly (0 rows) when executed from sqlplus on same client (Windows XP) using command window. Database server is RHEL 4 using Oracle Enterprise 10.2.0.3. SQLPLUS version is 9.2.0.7.0.