I've seen a lot of discussion of a Scripts/Plugins folder. It's just occured to me that I don't have that folder in my directory. I vaguely remember having it before, but then, it just disappeared. I've had to reinstall the game a few times to get some MODs to work, but after the first install, that folder has never showed up again. The game's running fine, it's just that I'm curious why it's gone.
I think it's part of the foundation plugin system that gets installed into your Bridge Commander directory when you install the BCMI or BCMP. It's not supposed to be there by default. If you want, try reinstalling the plugin.