Postgres hung processes

[Anon]

I am running Apache 1.3.26, php 4.2.2, pear 4.1.0, postgres 7.2.1, and imp 3.1. When a user logs in through imp, I can see a process created with the postgres database, which I am using to store the users options. The problem is, this process never goes away, even when the user logs out. I found in sql.php where the disconnect should happen:

if (isset($this->db) && is_object($this->db)

but putting some comments in, show that this is always false and the "$this->db->disconnect() never gets called.

I was wondering if anyone has seen this, or has any ideas.

Thanks