V7.0 Error: OID ##### no longer exists in pg_databas e

> 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
>