V7.0 Error: OID ##### no longer exists in pg_database

Any ideas on why this error would occur after dropping an existing database
and than re-creating it (createdb)?  The only work around so far is to
completely destroy the postgres instance and start over.  

It appears that the pg_database may be getting currupted.

Sandy Barnes
Honeywell
Business & General Aviation Engineering
One Technology Center
23500 West 105th Street
Olathe, KS.     66061
tel         913.712.2027
fax        913.712.1347
email    sandy.barnes@honeywell.com