SQL*Plus error

From: Tomas Rimsten <dat94trn_at_idt.mdh.se>
Date: 1997/05/23
Message-ID: <Pine.GSO.3.95.970523165441.3084A-100000@bilbo.mdh.se>#1/1

I get this message when I connect to SQL*Plus, can some one help me. ??

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SQL*Plus: Release 3.3.2.0.2 - Production on Fri May 23 16:49:47 1997

Copyright (c) Oracle Corporation 1979, 1994. All rights reserved.

ERROR:

ORA-06550: line 1, column 7:
PLS-00201: identifier 'DBMS_OUTPUT.DISABLE' must be declared
ORA-06550: line 1, column 7:

PL/SQL: Statement ignored

Error accessing package DBMS_APPLICATION_INFO ERROR:
ORA-04068: existing state of packages has been discarded ORA-04067: not executed, package body "SYS.DBMS_APPLICATION_INFO" does not exist
ORA-06508: PL/SQL: could not find program unit being called ORA-06512: at line 1

Error accessing package DBMS_APPLICATION_INFO You may need to install the Oracle Procedural option SET APPINFO requires Oracle Server Release 7.2 or later

Connected to:
Oracle7 Workgroup Server Release 7.3.2.3.1 - Production Release With the distributed option
PL/SQL Release 2.3.2.3.0 - Production

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Received on Fri May 23 1997 - 00:00:00 CDT