Larry,
> Postgres Version 7.4.7 (Yes I know that's very old. I'm sure an upgrade
> will fix the problem.)
Given that there are 6 patch releases since 7.4.7, I'd start by reading the
release notes for those patches. And then upgrading. And then
retesting. And then ask us for help if it's still happening.
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco