Two instances show same databases

Hello,

I'm setting up a second instance on a server. The instance versions are 8.3.5 (original instance) and 9.1.3 (the new instance I'm attempting to set up).

I believe I have followed the steps in setting up a second instance faithfully. The new instance starts up, but I'm seeing that when I list the 9.1.3 databases, the 8.3.5 databases are shown.
As the _pgsql user I run '/usr/local/postgresql/pgsql-9.1.3/bin/psql -l' and I get a listing of databases from the 8.3.5 instance (with the 'Access privileges' column added).

I believe this can't be right and I think I've done something wrong.

The settings I've used for the 9.1.3 instance are:

The configuration during compile used was:
./configure --prefix=/usr/local/postgresql/pgsql-9.1.3
(For 8.3.5 I used the default prefix, /usr/local/pgsql)

In /usr/local/postgresql/pgsql-9.1.3/data/postgresql.conf
port = 5433
(The 8.3.5 port is the default, 5432)

The initdb command used is:
/usr/local/postgresql/pgsql-9.1.3/bin/initdb -E utf8 --locale=en_US.UTF-8 -D /usr/local/postgresql/pgsql-9.1.3/data

The startup invocation is:
/usr/local/postgresql/pgsql-9.1.3/bin/pg_ctl -D /usr/local/postgresql/pgsql-9.1.3/data -l /var/log/pgsql/pgsql-9.1.3/access.log start

The lock files are in place:
/tmp/.s.PGSQL.5432
/tmp/.s.PGSQL.5432.lock
/tmp/.s.PGSQL.5433
/tmp/.s.PGSQL.5433.lock

I appreciate any help.

Sincerely,
Jose
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Jose Hales-Garcia
UCLA Department of Statistics