After upgrade from 8.3 to 8.4 in OS X the same server is appearing twice

I recently upgraded my postgresql installation from 8.3 to 8.4 with fink on
OS X. I did this by blowing away everything and doing a clean install.

Now when I run pgadmin is see two servers one called "PostgreSQL 8.3
(localhost:5432)" and the other is "PostgreSQL 8.4 (local:.s.PGSQL.5432)"
but both have the same version string property and identify themselves as
8.4 and both connect to the same databases.

What have I done wrong and why does one insist on calling itself 8.3?

"PostgreSQL 8.3 (localhost:5432)"
=====================
Description    PostgreSQL 8.3    
Hostname    localhost    
Port    5432    
Encryption    not encrypted    
Maintenance database    postgres    
Username    postgres    
Store password?    No    
Restore environment?    No    
Version string    PostgreSQL 8.4.8 on i386-apple-darwin10.7.0, compiled by GCC
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3),
64-bit    
Version number    8.4    
Last system OID    11563    
Connected?    Yes    
Up since    07/08/2011 16:32:46    
Configuration loaded since    07/08/2011 16:32:45    
Autovacuum    running    

"PostgreSQL 8.4 (local:.s.PGSQL.5432)"
========================
Description    Postgres 8.4    
Hostname    local:    
Port    5432    
Maintenance database    postgres    
Username    postgres    
Store password?    Yes    
Restore environment?    Yes    
Version string    PostgreSQL 8.4.8 on i386-apple-darwin10.7.0, compiled by GCC
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3),
64-bit    
Version number    8.4    
Last system OID    11563    
Connected?    Yes    
Up since    07/08/2011 16:32:46    
Configuration loaded since    07/08/2011 16:32:45    
Autovacuum    running    


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