PgAdmin III shows removed PostgreSQL

Hello All This is my first post. I installed PostgreSQL 9.0 via EnterpriseDB. It was seen fine by PgAdmin. I was told I needed to installed ver 9.1, so I uninsalled PostgreSQL 9.0 as well as PgAdmin. I searched for any remnants using "locate" ( I am on a Centos 6 server). I installed PostgreSQL 9.1 and PgAdmin again. Now PgAdmin shows the old PostgreSQL-9.0 still. I have purged my system 3 times with the same results. It installed to /opt by default, and i see no instances of postgres-9 anywhere on the machine. Here is a screenshot. Can anyone help with a suggestion?

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