While struggling with migrating from one web host to another (see https://juicebox.net/forum/viewtopic.php?id=2233), I uncovered another issue with juicebox. My constant activating, deactivating, deleting files and folders, etc. left me scratching my head as to where my Gallery_ID values where originating.

After poking around a bit with phpMyAdmin I found "juicebox_options" in the _options table.

I would suggest/request the following:

1) On activating juicebox, check to see if the \wp-contents\uploads\juicebox folder exists, and if it does, iterate the contents to determine the max id number and use that to initialize the juicebox_options

2) Add another function to the Manage Galleries to allow the user to execute suggestion #1 above

Thanks for your consideration in helping those who might not be so inclined to tinker with their databases.