[PatrickH]

Thanks. I've got version 1.7.3. I think you're correct about one of the Snow Leopard upgrades resulting in the creation of a new client. The upgrade went smoothly on my home machine, but at work I'm having numerous issues with permissions that were set incorrectly. When I looked at "Show Clients" upon Dennis' suggestion, the duplicate client was from work.

So far, so good from the home machine. The database is smaller.