corrupted pg_proc?

<div class="Section1"><p class="MsoNormal">I need to repair the old version of Postgresql.<p class="MsoNormal">pg_dump
doesnot work, I tried few other things but could not come up with any workable scenario.<p class="MsoNormal">Any help
willbe greatly appreciated!<p class="MsoNormal">Thanks,<p class="MsoNormal">Michael.<p class="MsoNormal"> <p
class="MsoNormal"> <pclass="MsoNormal">cdb=# vacuum;<p class="MsoNormal">WARNING:  Rel pg_proc: TID 31/20: OID IS
INVALID.TUPGONE 0.<p class="MsoNormal">VACUUM<p class="MsoNormal">cdb=# select version();<p
class="MsoNormal">                              version                                <p
class="MsoNormal">----------------------------------------------------------------------<pclass="MsoNormal"> PostgreSQL
7.3.2on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3<p class="MsoNormal">(1 row)<p class="MsoNormal"> </div>