More Problems

My nightly dump of one of my databases started failing Wednesday night and
I'm not sure what is going on.  When I pg_dump this one database (others on
this machine are fine) I get this output from pg_dump

--  last builtin oid is 17216 
--  reading user-defined types 
--  reading user-defined functions 
--  reading user-defined aggregates 
--  reading user-defined operators 
--  reading user-defined tables 
--  finding Triggers for relation: 'jobs' 
[snip] ...
--  finding DEFAULT expression for attr: 'id' 
--  finding the attrs and types for table: 'testassignments' 
--  finding DEFAULT expression for attr: 'id' 
--  finding DEFAULT expression for attr: 'standby' 
--  finding the attrs and types for table: 'pagedata' 
--  finding DEFAULT expression for attr: 'id' 
--  flagging inherited attributes in subtables 
--  dumping out database comment 
--  dumping out user-defined types 
--  dumping out tables 
--  dumping out user-defined procedural languages 
--  dumping out user-defined functions 
failed sanity check, type with oid 101993741 was not found

relevant info: pg7.0.2 on redhat 6.1, 700MHz Athlon, 256M, linux software
mirror hard drives.

btw: This is a completely different server at a different location from the
one that was having problems two weeks ago and thank you all for the help
then, I don't think I emailed a thank you, it was a busy day.