During the setup for FB7, it asks you for an account to run under. Ideally, I'd have my FB services running under NT_AUTHORITY\NetworkService as to avoid running under a specific user account. Then, I only need to grant permissions from the FB Webserver to the FB SQL machine, and I don't have to deal with expiring passwords. This is my preferred way of running production services.
The FB installer won't let me do this, and I'm reluctant to start changing things after I've installed. Anyone have any insight?