7.0.3 pg_dump -> segmentation fault!

[Postgres 7.0.3, SuSE Linux 7.1, kernel 2.2.14, dual pentium 3]
450 user tables, db directory ~ 90MB.

I'm desperate!  I need to dump my db so I can set it up on another machine.
I have a lot of important data here and haven't been able to dump it! I can't even pg_dump
a single table.  The db is up and running, but pg_dump crashes!

pg_dump -v pig5  gives:

--  reading user-defined types
--  reading user-defined functions
--  reading user-defined aggregates
--  reading user-defined operators
--  reading user-defined tables
--  finding Triggers for relation: 'runs_tmp'
PQgetvalue: ERROR! tuple number 0 is out of range 0..-1
Segmentation fault (core dumped)                      

The last stuff in the log file is: query: SELECT tgname, tgfoid, tgtype, tgnargs, tgargs, tgisconstraint, tgconstrname,
tgdeferrable,tginitdeferred, oid from pg_trigger where tgrelid = '1131188'::oid ProcessQuery CommitTransactionCommand
StartTransactionCommandquery: SELECT proname from pg_proc where pg_proc.oid = '1132416'::oid   
 

In fact there is no row in pg_proc with oid=1132416.

select * from pg_trigger;tgrelid |     tgname     | tgfoid  | tgtype | tgenabled | tgisconstraint | tgconstrname |
tgconstrrelid| tgdeferrable | tginitdeferred | tgnargs | tgattr | tgargs
 

---------+----------------+---------+--------+-----------+----------------+--------------+---------------+--------------+----------------+---------+--------+--------
 1260 | pg_sync_pg_pwd |      12 |     29 | t         | f              |              |             0 | f            |
f             |       0 |        |1131188 | run_changed_tr | 1132416 |     17 | t         | f              |
 |             0 | f            | f              |       0 |        |
 
(2 rows)
                                       
 

I'm hoping there is some safe way to manually delete the inconsistant rows and then pg_dump.
Does anyone have a suggestion how to recover from this situation?

Thanks,George
--
George Young,  Rm. L-204                gry@ll.mit.edu
MIT Lincoln Laboratory
244 Wood St.
Lexington, Massachusetts  02420-9108    (781) 981-2756